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PEX plumbing parts are the fittings used to connect, join, and secure cross-linked polyethylene (PEX) tubing in hot and cold water distribution systems. This includes adapters, couplings, crimp rings, elbows, tees, plugs, and drop ears.
Water Armor’s PEX fittings are precision-machined from ECO BRASS® C69300, a lead-free*, corrosion-resistant alloy, and are compatible with PEX-A, PEX-B, and PEX-C tubing for both residential and commercial installations.
Water Armor is proud to meet the bulk and wholesale order needs of distributors and plumbers who are looking for high-quality, American made PEX fittings. Our fittings are suitable for commercial and residential new construction as well as for repair and retrofitting. Our plumbing parts are certified for temperatures up to 200℉ and the use in potable water applications.
Contact us today for your bulk quantity and wholesale brass orders.
When a homeowner or building manager calls a plumber, they expect a fully stocked truck and a fast, reliable fix. Here are the 8 PEX fittings every pro should keep on hand:
Stocking these eight parts covers the majority of PEX repair, retrofit, and new-construction calls a plumber encounters in the field.
Cross-linked polyethylene, known as PEX, was developed about 50 years ago and has become the preferred choice for most modern residential and commercial water distribution thanks to its flexibility, faster installation, and resistance to corrosion and freeze damage. PEX’s properties keep it stable yet flexible across a wide range of temperatures and pressures.
PEX piping offers a flexible, corrosion-resistant solution for water distribution, requiring fewer fittings than rigid pipe and reducing installation time and labor costs. Water Armor supports two proven connection methods with its crimp and 1960 expansion fitting lines. Crimp fittings provide a simple, cost-effective connection compatible with PEX-A, PEX-B, and PEX-C tubing, while our 1960 expansion fittings use the tubing’s ability to contract around the fitting to create a secure connection with less flow restriction. With both options available, installers can choose the connection method that best suits their application.
Learn more about the best uses for PEX fittings here. Have questions about plumbing part applications and terms? Visit our FAQ page.
Residential plumbers. Commercial contractors. Plumbing distributors and suppliers.
Whether you’re repairing a kitchen faucet, installing a high-capacity commercial system, or supplying hundreds of contractors, we produce the highest quality, American-made brass crimp and expansion PEX fittings. Residential plumbers, commercial plumbing pros, and distributors trust us for products that are compatible with demanding installations and comply with stringent industry standards.
Choosing Water Armor means choosing reduced callbacks, longer-lasting results, and the confidence to get the job done right the first time. Every product we sell is proudly manufactured in the USA, ensuring strict quality control, consistent tolerances, and reliable performance on every job. By choosing Water Armor, you’re not only supporting domestic manufacturing but you’re also getting faster delivery, consistent inventory, and a direct line to knowledgeable customer support.
Our plumbing parts and fittings are precision-machined with ECO BRASS® C69300, a lead-free* alloy that is engineered for superior corrosion resistance and reduced mineral buildup—critical for maintaining water quality and system longevity. In addition, the compatibility with PEX tubing offers flexibility for both residential and commercial installations.
Water Armor’s PEX fittings are designed to reduce callbacks. Whether it’s a custom home build, a large multi-family complex, or a single repair call, we provide American made products that ensure leak-free performance. They are also compatible with PEX A, PEX B, and PEX C tubing, as well as copper pipe, which gives plumbers the flexibility they need for any project.
Commercial plumbing requires parts that can perform under continuous use, variable pressures, and strict health and safety regulations. We serve a wide range of commercial markets, including:
PEX fittings are sized to match the outer diameter of the tubing they connect to, so a 1/2″ fitting is used with 1/2″ PEX tubing and a 3/4″ fitting with 3/4″ tubing. Using a fitting that doesn’t match the tubing size can prevent a proper crimp or seal, so always confirm the tubing size before selecting a fitting.
Yes. Water Armor PEX fittings are manufactured from ECO BRASS® C69300, a lead-free* alloy engineered for potable water applications, corrosion resistance, and reduced mineral buildup.
Yes. Water Armor’s brass PEX fittings are compatible with PEX-A, PEX-B, and PEX-C tubing, giving plumbers flexibility to use the same fitting line across different tubing types and installation methods.
Yes. All Water Armor plumbing parts are certified for hot and cold water distribution and potable water use, and they exceed applicable ASTM and ANSI standards.
A crimp ring is a mechanical band that secures PEX tubing onto a fitting when compressed with a crimp tool, and it’s used at nearly every PEX connection point. A drop ear fitting is a wall-mounted fixture connector with mounting ears that anchor it to a stud or wall, providing a rigid termination point for fixtures like showerheads, hose bibs, or sink supply lines.
Yes. Water Armor brass PEX fittings are compatible with copper, which allows plumbers to transition between PEX and copper within the same system during repairs, retrofits, or hybrid installations.
Adapters
Couplings
Crimp Rings
Drop Ears
Elbows
Tees
Plugs
Our engineered plumbing products are built to perform and backed by a team that values your time, your profession, and your reputation. Choosing The Brass Warehouse means you’re choosing faster installs, longer-lasting results, and the confidence to get the job done right the first time.
