Does PEX Need To Be Sleeved?

PEX does not necessarily need to be sleeved, but there are situations where sleeving is recommended or required by building codes. The need for sleeving depends on the specific installation and local regulations. Here are some key considerations:

Protection: Sleeving provides an extra layer of protection against potential damage, such as UV exposure, rodents, or sharp objects.
Accessibility: If PEX pipes are buried underground or hidden within walls, sleeving makes it easier to locate and access the pipes for maintenance or repairs.
Building codes: Some jurisdictions require sleeving for certain applications, like when PEX is used in concrete slabs or in areas where it may come into contact with chemicals.
Compatibility: In specific cases, sleeving may be necessary to protect PEX pipes from potential chemical reactions with other materials or when there is a risk of contact with substances that may degrade the pipe.
Insulation: In colder climates, sleeving can provide insulation to prevent freezing or heat loss.

It’s important to consult local building codes and regulations, as well as following manufacturer’s guidelines and recommendations, to determine if sleeving is necessary for your particular PEX installation.

Overview of PEX piping

PEX piping is a flexible and durable plumbing material widely used in residential and commercial construction. It is made from cross-linked polyethylene, which enhances its strength and resistance to heat and chemicals. PEX piping offers several advantages, including:

Flexibility: PEX can bend around corners and obstacles, reducing the need for fittings and joints, thereby minimizing potential leak points.
Corrosion resistance: Unlike metal pipes, PEX does not corrode or degrade over time, ensuring long-lasting performance.
Freeze resistance: PEX has the ability to expand and contract without bursting, making it suitable for cold weather installations.
Easy installation: PEX is lightweight and can be easily cut and secured with simple tools, resulting in faster and more cost-effective installations.
Reduced noise: PEX piping dampens water flow noise, offering quieter plumbing systems.

Due to these benefits, PEX piping has gained popularity in both residential and commercial applications, providing a reliable and efficient solution for plumbing needs.

Understanding PEX pipe sleeving

PEX pipe sleeving is a method used to protect and support PEX pipes in certain applications. It involves inserting the PEX pipe into a larger, rigid pipe or sleeve, creating a protective barrier around it. This technique offers several benefits:

Insulation: The sleeve provides insulation, preventing heat loss or gain in the pipe, improving energy efficiency.
Physical Protection: The sleeve shields the PEX pipe from external damage, such as impact or abrasion, increasing its durability.
Rodent Resistance: The sleeving acts as a deterrent against rodents or pests that may attempt to chew or damage the PEX pipe.
Expansion and Contraction: The sleeve allows for expansion and contraction of the PEX pipe, reducing stress and the risk of leaks.
Easy Replacement: If needed, the PEX pipe can be easily removed and replaced within the sleeve, simplifying maintenance or repairs.

Overall, PEX pipe sleeving provides added protection, insulation, and flexibility for PEX piping systems in various applications.

Importance of sleeving PEX pipes

Sleeving PEX pipes is crucial for several reasons:

Protection against physical damage: Sleeving provides an extra layer of protection, shielding PEX pipes from potential external hazards like rocks, sharp objects, or rodents, which could otherwise cause damage or puncture the pipes.
Preventing contact with harmful substances: In some cases, PEX pipes may come into contact with substances that could potentially degrade or react with the pipe material. A sleeve acts as a barrier, reducing the chance of chemical interactions and preserving the integrity of the pipes.
Thermal insulation: Sleeving PEX pipes helps to improve thermal insulation. By using an appropriate sleeve material with insulating properties, heat loss or gain can be minimized, enhancing the energy efficiency of the system.
Ease of maintenance and repairs: Installing sleeved PEX pipes allows for easier identification and access during maintenance or repairs. It simplifies the process of locating and replacing damaged sections, reducing disruption and cost.

Overall, sleeving PEX pipes provides an additional layer of protection, improves thermal efficiency, and enhances the longevity of the piping system.

When is sleeving necessary for PEX?

Sleeving is necessary for PEX under certain conditions, including:

Direct exposure to sunlight: When PEX pipes are installed outdoors and exposed to sunlight, sleeving is required to protect the pipe from ultraviolet (UV) radiation, which can degrade the material over time.
Above-ground installations: If PEX pipes are installed above ground, such as in a crawlspace or attic, sleeving is necessary to provide an additional layer of protection against physical damage and to meet building code requirements.
Concrete or masonry encasement: When PEX pipes need to be installed within concrete or masonry structures, sleeving is essential to shield the pipe from the potential abrasion and chemical interactions that can occur.
Proximity to potential contaminants: In situations where PEX pipes are located near substances that may cause degradation or contamination, such as certain chemicals or solvents, sleeving is necessary to prevent direct contact and maintain the integrity of the pipe.

In summary, sleeving for PEX becomes necessary when there is exposure to sunlight, above-ground installations, concrete or masonry encasement, or proximity to potential contaminants.

Building code requirements for PEX sleeving

PEX sleeving is subject to building code requirements to ensure proper installation and safety. These requirements typically focus on the following aspects:

Fire resistance: PEX sleeving may be required to have a specific fire resistance rating to minimize the spread of fire between different areas of a building.
Physical protection: The sleeving must provide adequate protection to the PEX pipes against potential damage from construction activities, rodents, or other hazards.
Accessibility: Building codes may specify that the sleeving should be easily accessible for maintenance and repair purposes, allowing for easy inspection and replacement of the PEX pipes if needed.
Installation specifications: The codes may outline specific installation guidelines, such as the required depth of burial, clearances from other materials, and proper sealing and anchoring methods.
Permitting and inspection: Proper permits and inspections may be required to ensure compliance with building code requirements.

It is crucial to consult local building codes and regulations to ensure compliance with specific requirements in your area.

Common types of PEX pipe sleeving materials

PEX pipe sleeving materials commonly used include foam, plastic, and rubber. These materials provide protective covering for PEX pipes, helping to prevent damage and improve insulation.

Foam: Foam sleeves are lightweight and easy to install. They offer good thermal insulation and help reduce heat loss or gain in the pipes.
Plastic: Plastic sleeves are often made of PVC or polyethylene materials. They provide a durable and moisture-resistant barrier, protecting PEX pipes from external elements and preventing condensation.
Rubber: Rubber sleeves are flexible and offer excellent impact resistance. They are commonly used for underground or outdoor applications, providing protection against abrasion, UV exposure, and temperature fluctuations.

Choosing the appropriate sleeving material depends on factors such as the application, environmental conditions, and desired insulation properties. It is important to consult with professionals or refer to manufacturer recommendations to ensure proper selection and installation of PEX pipe sleeving materials.

Advantages of using sleeving for PEX pipes

Using sleeving for PEX pipes offers several advantages:

Enhanced protection: Sleeving provides an additional layer of protection around PEX pipes, shielding them from potential damage caused by abrasion, rodents, or other external factors.
Prevention of heat transfer: Sleeving acts as a thermal barrier, minimizing heat transfer between the PEX pipes and their surroundings. This is particularly beneficial in situations where heat loss or gain needs to be controlled, such as in hot water distribution or radiant heating systems.
Added durability: The sleeving material adds strength and durability to the PEX pipes, reducing the risk of punctures or breakages. This is especially important in high-traffic or rugged environments.
Easy installation and maintenance: Sleeving can be easily installed and removed, making it convenient for repairs or modifications to the PEX piping system. It simplifies maintenance and reduces the need for extensive excavation or replacement of the entire pipe.
Flexibility: Sleeving allows for greater flexibility in routing the PEX pipes, as it provides a smooth and lubricated surface that reduces friction and allows for easier maneuvering through tight spaces or bends.

In summary, sleeving for PEX pipes provides improved protection, thermal insulation, durability, ease of installation and maintenance, as well as enhanced flexibility in pipe routing.

Disadvantages of not sleeving PEX pipes

Not sleeving PEX pipes can have several drawbacks, including:

Heat transfer: PEX pipes, when not sleeved, can experience increased heat transfer. This means that hot water may lose heat more quickly, leading to energy inefficiency and potentially higher energy bills.
Rodent damage: Without proper sleeving, PEX pipes are vulnerable to damage from rodents. Rats and mice may chew through the pipes, causing leaks and water damage.
UV degradation: Exposed PEX pipes can be susceptible to degradation from ultraviolet (UV) rays. Sunlight can weaken the material over time, leading to cracks and leaks.
Chemical reactions: In certain scenarios, PEX pipes may react with chemicals present in the surrounding environment, such as pesticides or cleaning agents. These reactions can compromise the integrity of the pipes and affect water quality.
Abrasion and wear: Without a protective sleeve, PEX pipes are more prone to abrasion and wear over time, especially when in contact with rough surfaces or sharp objects. This can lead to leaks and reduced lifespan of the pipes.

To ensure the longevity and optimal performance of PEX pipes, it is recommended to properly sleeve them, protecting them from external factors and minimizing potential risks.

Factors to consider when deciding to sleeve PEX

When deciding whether to sleeve PEX (cross-linked polyethylene) pipes, several factors should be considered:

Environmental conditions: Evaluate the potential exposure to sunlight, chemicals, or extreme temperatures. Sleeving may be necessary to protect PEX pipes from degradation or damage in harsh environments.
Physical protection: Determine if the PEX pipes are at risk of physical damage, such as potential punctures or impacts. In high-traffic areas or where pipes are exposed, sleeving can provide an additional layer of protection.
Rodent or pest concerns: If there is a risk of rodents or pests chewing on the PEX pipes, sleeving can act as a barrier to prevent damage.
Code requirements: Familiarize yourself with local building codes and regulations to determine if sleeving is mandated in certain situations, such as for fire-rated assemblies or in specific locations.
Future accessibility: Consider whether future access to the PEX pipes may be required for maintenance or repairs. Sleeving can make it easier to locate and access the pipes when needed.
Cost and feasibility: Evaluate the cost and practicality of sleeving the PEX pipes compared to alternative solutions. Assess the availability of suitable sleeves and the effort required for installation.

Considering these factors will help determine whether sleeving PEX pipes is necessary or beneficial in a specific installation scenario.

Best practices for sleeving PEX pipes

1. Insulate against heat and cold: Sleeving PEX pipes helps protect them from extreme temperatures. Insulate the sleeves with foam or other suitable material to prevent heat loss or gain.

2. Protect against physical damage: Install the sleeves in areas where the PEX pipes are vulnerable to physical damage, such as areas with high foot traffic or sharp objects. Use sturdy materials like PVC or metal sleeves to provide adequate protection.

3. Maintain accessibility: Ensure that the sleeves are easily accessible for inspection and maintenance purposes. Consider using removable sleeves or access panels for convenience.

4. Minimize friction: Avoid tight bends or kinks in the sleeves to prevent unnecessary friction on the PEX pipes. This reduces the risk of damage and maintains optimal water flow.

5. Use appropriate sizing: Select sleeves that are the right size for the PEX pipes to ensure a proper fit. Oversized or undersized sleeves may compromise the effectiveness of the sleeving.

6. Follow manufacturer guidelines: Adhere to the recommendations provided by the PEX pipe and sleeve manufacturers for installation, spacing, and compatibility.

7. Consider local codes and regulations: Familiarize yourself with local building codes and regulations to ensure compliance when sleeving PEX pipes. Consult with a professional if needed.

8. Regular inspections: Periodically inspect the sleeves for any signs of damage or wear. Promptly address any issues to maintain the integrity of the sleeved PEX pipes.

9. Proper sealing: Ensure that the sleeves are adequately sealed to prevent water or moisture intrusion. Use appropriate sealing methods, such as waterproof tape or adhesive, as recommended by the manufacturer.

10. Seek professional assistance: If you are unsure about the sleeving process or encounter complex installations, it is advisable to consult a professional plumber or contractor for guidance and assistance.

Cost implications of sleeving PEX

Sleeving PEX can have cost implications that should be considered. Here are some key points:

Material cost: Sleeving PEX involves the additional expense of purchasing the sleeving material itself. The cost of the sleeve will depend on the type and length needed for the project.
Labor cost: Installing the sleeve requires extra time and effort, which can increase the labor cost. The complexity of the installation, accessibility, and the skill level of the installer can also affect the labor cost.
Permitting and inspection: In some areas, sleeving PEX may require obtaining permits and undergoing inspections. These processes can involve fees and add to the overall cost of the project.
Long-term benefits: While sleeving PEX incurs initial costs, it offers long-term benefits such as protection against damage and easier maintenance. These advantages can offset the upfront expenses by reducing the need for repairs or replacements in the future.

Considering these factors, it is important to evaluate the specific requirements and circumstances of the project to determine the overall cost implications of sleeving PEX.

PEX sleeving in residential applications

PEX sleeving is commonly used in residential applications to protect cross-linked polyethylene (PEX) pipes. It provides an additional layer of insulation and safeguards the PEX pipes from potential damage caused by external factors. Here are a few key points to consider regarding PEX sleeving:

Protection: PEX sleeving acts as a barrier, shielding the PEX pipes from physical impact, abrasive materials, or rodents, minimizing the risk of punctures or leaks.
Routing: The sleeving facilitates organized and proper routing of the PEX pipes within walls, floors, or ceilings, ensuring a neat and efficient installation.
Temperature Regulation: PEX sleeving helps maintain consistent temperatures by providing insulation, reducing heat loss or gain in hot and cold water supply lines.
Noise Reduction: The sleeving can help minimize the noise caused by water flow or pressure fluctuations, enhancing the overall comfort within the residential space.
Versatility: PEX sleeving can be used in various residential applications, such as plumbing systems, radiant heating, or snow melting systems, offering flexibility and adaptability to different projects.

PEX sleeving in commercial applications

PEX sleeving is commonly used in commercial applications due to its numerous benefits. It offers superior flexibility and ease of installation, making it an ideal choice for various projects. Here are some key reasons why PEX sleeving is favored in commercial applications:

Protection: PEX sleeving provides a protective barrier around pipes, shielding them from damage caused by abrasion, chemicals, or external elements.
Versatility: It can be used for various applications, including plumbing, electrical, and HVAC systems, allowing for a streamlined installation process.
Corrosion resistance: PEX sleeving is highly resistant to corrosion, ensuring long-term durability and minimizing maintenance needs.
Cost-effective: PEX sleeving offers cost savings in terms of material and labor, thanks to its lightweight nature and easy installation methods.
Expansion and contraction: PEX sleeving can accommodate the expansion and contraction of pipes, reducing the risk of leaks or ruptures.

Overall, PEX sleeving is a reliable and efficient solution for commercial applications, providing protection, versatility, and cost-effectiveness.

Different methods of sleeving PEX pipes

1. Slip-on Sleeving: This method involves sliding a pre-cut sleeve over the PEX pipe, typically made of plastic or metal. The sleeve provides an extra layer of protection against potential damage.

2. Heat Shrink Sleeving: Heat shrink sleeves are applied to the PEX pipe and then heated, causing the sleeve to shrink tightly around the pipe, providing insulation and protection.

3. Compression Fittings: Compression fittings are used to join two PEX pipes together with a sleeve in between. The fittings are tightened to create a secure connection, ensuring that the sleeve remains in place.

4. Adhesive Sleeving: Adhesive sleeves are wrapped around the PEX pipe and secured with adhesive or heat, creating a tight seal that prevents water infiltration and protects the pipe.

5. Expandable Sleeving: This method involves using an expandable sleeve that can be stretched to fit over the PEX pipe. Once in place, the sleeve contracts, creating a snug fit and providing insulation and protection.

6. Push-fit Sleeving: Push-fit sleeves feature a simple design that allows them to be easily pushed onto the PEX pipe, creating a secure connection without the need for additional tools or fittings.

7. Clamp Sleeving: Clamp sleeves consist of metal or plastic bands that are tightened around the PEX pipe using clamps or zip ties. This method provides a secure hold and helps protect the pipe from external elements.

These different methods of sleeving PEX pipes offer various options to suit specific needs, ensuring the integrity and longevity of the piping system.

PEX sleeving for hot water applications

PEX sleeving is a practical solution for protecting hot water pipes. It offers several benefits that make it ideal for hot water applications:

Insulation: PEX sleeving provides excellent insulation, minimizing heat loss and reducing energy consumption.
Corrosion resistance: PEX sleeving is highly resistant to corrosion, preventing pipe damage and prolonging the lifespan of the system.
Flexibility: PEX sleeving is flexible, making it easy to maneuver and install in tight spaces, reducing the need for additional fittings.
Expansion and contraction: PEX sleeving can accommodate thermal expansion and contraction, reducing the risk of pipe bursts and leaks.
Noise reduction: PEX sleeving helps dampen water flow noise, ensuring a quieter system.
Cost-effective: PEX sleeving is a cost-effective alternative to traditional metal piping, as it requires fewer fittings and is easier to install.

Overall, PEX sleeving provides reliable protection, insulation, and durability for hot water applications, making it a popular choice among homeowners and professionals alike.

PEX sleeving for cold water applications

PEX sleeving is commonly used in cold water applications to provide additional protection and insulation to the water pipes. It offers several benefits, including:

Preventing condensation: The sleeving helps reduce the formation of condensation on the exterior of the pipes, which can lead to moisture damage and mold growth.
Protecting against freezing: In cold climates, the sleeving acts as an extra layer of insulation, reducing the risk of freezing and potential pipe bursts.
Enhancing durability: The sleeving adds strength and durability to the PEX pipes, making them more resistant to impact and abrasion.
Noise reduction: The sleeving can help dampen water flow noise, creating a quieter plumbing system.
Easy installation: PEX sleeving is typically flexible and easy to install, allowing for quick and efficient application.

Overall, PEX sleeving provides an additional layer of protection and insulation for cold water applications, improving the longevity and performance of the plumbing system.

PEX sleeving for hydronic heating systems

PEX sleeving is commonly used in hydronic heating systems to protect and insulate PEX pipes. It provides several benefits that enhance the performance and longevity of the system.

Here are some key points to understand about PEX sleeving for hydronic heating systems:

Protection: The sleeving acts as a protective barrier, shielding the PEX pipes from potential damage caused by external factors such as rodents, concrete, or sharp objects.
Insulation: The sleeving provides an extra layer of insulation, minimizing heat loss and improving the energy efficiency of the system.
Expansion and contraction: PEX sleeving allows the PEX pipes to expand and contract as they heat and cool, preventing any potential damage or strain on the pipes.
Ease of installation: The sleeving is designed for easy installation, typically featuring a flexible and lightweight construction that simplifies the process.
Compatibility: PEX sleeving is compatible with various types of PEX pipes, making it a versatile choice for different hydronic heating applications.

Overall, PEX sleeving is a valuable component in hydronic heating systems, offering protection, insulation, and flexibility for optimal performance and durability.

PEX sleeving for radiant floor heating

PEX sleeving is commonly used in radiant floor heating installations to protect the PEX pipes and provide added durability and longevity to the system. Here are a few key benefits of using PEX sleeving:

Protection: The sleeving acts as a protective barrier, shielding the PEX pipes from potential damage during installation and throughout the life of the system.
Prevention of friction: By reducing friction between the PEX pipes and surrounding materials such as concrete or gravel, the sleeving helps minimize wear and tear, preventing leaks or other issues.
Easy repairs and maintenance: With PEX sleeving, it is easier to access and repair or replace individual pipes without disturbing the entire floor or system. This saves time and cost during maintenance or troubleshooting.
Flexibility and expansion: PEX sleeving allows for expansion and contraction of the pipes as they heat and cool, preventing stress or strain on the system.

Sleeving requirements for PEX in concrete slabs

PEX (cross-linked polyethylene) pipes are commonly used for plumbing systems in residential and commercial buildings, including in concrete slabs. To ensure proper installation and protection of PEX pipes in concrete slabs, the following requirements should be followed:

Sleeving: PEX pipes should be protected by a sleeve or conduit when embedded in a concrete slab. This sleeve prevents direct contact between the PEX pipe and the concrete, providing thermal expansion and contraction space.
Sleeve material: The sleeve material should be non-metallic to prevent potential corrosion and damage to the PEX pipe. Common sleeve materials include high-density polyethylene (HDPE) or PVC (polyvinyl chloride).
Sleeve diameter: The sleeve should have a larger diameter than the PEX pipe to allow for smooth pipe insertion and easy replacement if necessary. It is recommended to use a sleeve diameter that provides at least 1/2 inch of clearance around the PEX pipe.
Sleeve installation: The sleeve should be securely fastened to the formwork or embedded in the concrete during construction to prevent shifting or damage.

By adhering to these sleeving requirements, the PEX pipes in concrete slabs can be properly protected and ensure the longevity and functionality of the plumbing system.

Sleeving options for PEX in wall cavities

1. Metal Sleeves: Metal sleeves, such as steel or copper pipes, can be used to protect PEX pipes in wall cavities. These sleeves offer excellent durability and provide additional protection against potential damage.

2. PVC Sleeves: PVC (polyvinyl chloride) sleeves are commonly used as protective barriers for PEX pipes in wall cavities. They are cost-effective, easy to install, and resistant to corrosion.

3. Flexible Conduit: Flexible conduits, usually made of plastic or metal, are a versatile option for sleeving PEX pipes. They allow for easy installation and flexibility around corners or obstacles.

4. Non-metallic Corrugated Tubing: This type of sleeving provides protection and flexibility. Non-metallic corrugated tubing is typically made of high-density polyethylene (HDPE) and can be easily bent and routed through wall cavities.

5. Protective Tape or Wrap: Wrapping PEX pipes with protective tape or wrap can offer a layer of insulation and shielding against potential hazards within wall cavities.

6. Insulated Pipe Sleeves: If insulation is required, using insulated pipe sleeves can provide both protection and thermal efficiency, ensuring that the PEX pipes remain safe and well-insulated within the wall cavities.

Remember to consult local building codes and regulations to ensure compliance and safety when choosing sleeving options for PEX pipes in wall cavities.

PEX sleeving and fire safety regulations

PEX sleeving is a protective covering used for PEX (cross-linked polyethylene) piping systems. It provides an extra layer of insulation and durability, preventing damage from external factors. When it comes to fire safety regulations, several considerations are important:

Building Codes: It is essential to comply with local building codes and regulations regarding fire safety measures, including the use of PEX sleeving.
Fire Resistance: PEX sleeving should meet the necessary fire resistance requirements to ensure it can withstand high temperatures and prevent the spread of fire.
Installation Guidelines: Proper installation of PEX sleeving is crucial to maintain fire safety standards. Follow manufacturer instructions and consult with professionals to ensure compliance.
Testing and Certification: Look for PEX sleeving products that have undergone rigorous testing and obtained relevant certifications, such as ASTM E84 or UL 1821.

By adhering to fire safety regulations and using approved PEX sleeving, you can enhance the overall safety of your piping system and mitigate potential fire hazards.

Conclusion

In conclusion, sleeving PEX is not always necessary, but it can offer several benefits depending on the specific installation scenario. While PEX tubing is generally durable and resistant to corrosion, sleeving can provide an extra layer of protection in certain situations.

Here are a few key considerations:

Exposure to UV radiation: If the PEX tubing will be exposed to sunlight or outdoor conditions, sleeving can shield it from UV damage, ensuring its longevity and performance.
Rodent or pest infestation: In areas where rodents or pests are a concern, sleeving the PEX can prevent damage caused by their chewing or gnawing.
Abrasion or impact: When PEX pipes are at risk of being damaged by sharp objects or heavy traffic, sleeving can provide an additional layer of defense.
Building code requirements: Some local building codes may mandate sleeving PEX in specific situations, such as when it passes through certain materials or fire-rated assemblies.

Ultimately, the decision to sleeve PEX should be based on a thorough evaluation of the installation environment and local regulations. Consulting with a professional plumber or building inspector can help ensure that the appropriate measures are taken to protect the PEX tubing and maintain its integrity over time.

Frequently Asked Questions

Q: Does PEX need to be sleeved?

A: PEX does not need to be sleeved in most cases. It is a flexible and durable material that can be directly installed in walls, ceilings, and floors without additional protection.

Q: What is PEX?

A: PEX stands for cross-linked polyethylene. It is a type of plastic tubing commonly used in plumbing systems for the distribution of hot and cold water.

Q: When is sleeving necessary for PEX?

A: Sleeving is typically required for PEX when it is installed in certain specific situations, such as when it is buried underground or when it runs through unconditioned spaces like crawl spaces or attics. Local building codes may dictate when sleeving is necessary.

Q: What is the purpose of sleeving PEX?

A: Sleeving PEX provides additional protection against potential damage from external factors like rodents, UV exposure, or physical impact. It helps maintain the integrity of the PEX tubing and prolong its lifespan.

Q: What materials can be used to sleeve PEX?

A: Various materials can be used to sleeve PEX, including PVC (polyvinyl chloride), CPVC (chlorinated polyvinyl chloride), or metal conduits. The choice of sleeving material depends on the specific application and local building codes.

Ralph D. Moniz

Greetings! I’m Ralph D. Moniz, your reliable PEX plumbing service provider. Stay updated on all things plumbing by exploring my PEX System blog. Just search “PEX System” on popular search engines like Google or Yahoo. Need assistance? Contact me at https://pexsystem.com/contact/.