When it comes to outdoor plumbing applications, such as irrigation systems, outdoor showers, or even water features, it is essential to choose the right type of fittings to ensure a reliable and long-lasting plumbing system. One of the best options available in the market today is underground Pex fittings by outdoorboiler.com. Pex, short for cross-linked polyethylene, is a flexible and durable material that is widely used in plumbing systems. In this article, we will explore the advantages of using underground Pex fittings for outdoor plumbing applications.

1. Resistance to Corrosion

One of the significant advantages of using underground Pex fittings is their resistance to corrosion. Unlike traditional metal fittings, Pex fittings are not susceptible to rust or corrosion caused by exposure to moisture or other environmental factors. This makes them an ideal choice for outdoor plumbing applications where the fittings may come into contact with soil, water, or other corrosive substances.

2. Flexibility

Another advantage of underground Pex fittings is their flexibility. Pex pipes and fittings are incredibly flexible, making them easy to install in various outdoor plumbing applications. The flexibility of Pex fittings allows for easy maneuvering around obstacles, such as tree roots or existing structures, without the need for extensive digging or disruption to the landscape.

3. Resistance to Freezing

In cold climates, freezing temperatures can pose a significant risk to outdoor plumbing systems. Pex fittings have excellent resistance to freezing, making them an ideal choice for outdoor applications in areas where temperatures drop below freezing. 

Outdoor plumbing systems, such as sprinkler systems, outdoor faucets, and underground water lines, are particularly susceptible to freezing during cold weather. When water freezes inside the pipes, it expands and can lead to pipe bursts and leaks. However, with Pex fittings, the risk of damage is significantly reduced.

In addition to their resistance to freezing, Pex fittings also offer other advantages for outdoor applications. They are corrosion-resistant and do not require additional insulation, unlike metal pipes. This makes them a cost-effective and low-maintenance option for cold climates.

Furthermore, Pex fittings are easy to install, as they can be bent and maneuvered without the need for complicated soldering or welding. This flexibility allows for smoother installation in outdoor spaces, where pipes may need to navigate around obstacles or follow specific paths.

4. Cost-Effective

Compared to traditional metal fittings, underground Pex fittings are more cost-effective. Pex fittings are generally less expensive to purchase and install than their metal counterparts. The ease of installation and flexibility of Pex fittings can significantly reduce labor costs and the need for specialized tools or equipment.

5. Reduced Noise and Vibration

Traditional metal fittings can sometimes cause noise and vibration in plumbing systems, especially in areas where water pressure is high. Pex fittings, on the other hand, have excellent noise and vibration reduction properties.


Choosing the right fittings for outdoor plumbing applications is crucial to ensure a reliable and long-lasting plumbing system. Underground Pex fittings offer several advantages, including resistance to corrosion, flexibility, resistance to freezing, cost-effectiveness, and reduced noise and vibration. These advantages make Pex fittings an excellent choice for homeowners and professionals alike when it comes to outdoor plumbing installations. By opting for underground Pex fittings, you can have peace of mind knowing that your outdoor plumbing system is built to last and perform efficiently for years to come.

By Grace