1 inch x 1 inch x 3/4 inch PEX Engineered Plastic Insert Reducing Tee PEX x PEX x PEX

1 Inch x 1 Inch x 3/4 Inch PEX Engineered Plastic Insert Reducing Tee – ASTM F1807-Compatible

The 1 inch x 1 inch x 3/4 inch PEX Engineered Plastic Insert Reducing Tee is manufactured for use in potable water distribution systems where a size reduction is required in branch supply lines. This component supports cold and hot water installations and is compatible with ASTM F1807 crimp or clamp ring connection systems.

Application Standards and Functionality

This tee is designed to facilitate efficient system layout using PEX tubing in multi-branch plumbing systems. Its construction and dimensions align with industry standards for engineered polymer fittings, offering reliable long-term performance:

• ✅ Engineered Polymer Material: Manufactured from high-performance polysulfone or equivalent engineered plastic for elevated thermal and chemical resistance.
• ✅ Lead-Free Certified: Meets NSF/ANSI 61 and NSF 372 requirements for potable water contact.
• ✅ Barbed Insert Ends: Compatible with 1" mainline tubing and 3/4" branch tubing using copper crimp rings or stainless steel clamp bands.

Installation Benefits

Designed to reduce field fabrication time and ensure secure, code-compliant PEX connections in both residential and light commercial systems:

• ✅ Thermal Stability: Suitable for continuous pressure service up to 200°F at reduced pressure ratings.
• ✅ Corrosion-Resistant: Engineered plastic resists degradation in aggressive water conditions where metallic fittings may fail.
• ✅ Non-Conductive: Eliminates galvanic corrosion concerns in mixed-metal systems.

Technical Data

• Material: Engineered polymer (typically polysulfone or equivalent)
• Connections: Insert/barbed ends (1" x 1" x 3/4")
• Standards: ASTM F877, ASTM F1807, CSA B137.5 compliant
• Certifications: NSF 61, NSF 14, and NSF 372 for potable water applications

Use Case

Typically installed in home-run or remote manifold-style PEX systems, this reducing tee enables step-down piping transitions for fixture supply branches. It is most often used behind walls, in ceiling cavities, or in floor joist bays where quick and secure PEX routing is essential.

Industry Insight

Engineered plastic fittings are favored in residential PEX installations for their durability, lightweight handling, and resistance to pitting and scale buildup common in high-mineral-content water supplies.

The 1 inch x 1 inch x 3/4 inch PEX Engineered Plastic Insert Reducing Tee supports efficient water distribution layouts and consistent performance across both new construction and retrofit applications. Properly installed with verified crimp or clamp systems, this fitting meets code and performance demands in modern plumbing systems.