1 inch x 1 inch x 1/2 inch PEX Engineered Plastic Reducing Insert Tee PEX x PEX x PEX

1" x 3/4" x 1" PEX Reducing Tee – ASTM F1960 Cold Expansion Fitting

The Uponor 1" x 3/4" x 1" PEX Reducing Tee is a high-performance polymer fitting designed for use in PEX-a (cross-linked polyethylene) potable water systems. Manufactured from engineered polymer (EP), this tee enables a secure transition between pipe diameters while maintaining system integrity and consistent flow.

This tee is designed specifically for use with ASTM F1960 cold expansion PEX installation methods, utilizing Uponor’s expansion rings for a durable, connection without the need for glues, solder, or mechanical clamps. The dimensional accuracy and material strength ensure a permanent seal when installed with compatible expansion tools.

Product Features

• ✅ Material: Engineered Polymer (EP), lead-free and compliant with NSF/ANSI 61 and 372 standards
• ✅ Connection Type: ASTM F1960 cold expansion PEX-a
• ✅ Configuration: 1" x 3/4" x 1" reducing tee
• ✅ Pressure Rating: 100 psi at 180°F, 160 psi at 73.4°F
• ✅ Temperature Range: Suitable for hot and cold potable water applications

Installation Guidance

Designed for cold expansion installations, this tee must be used with an F1960 expansion tool and expansion rings. Follow these guidelines for optimal performance:

• ✔️ Use with PEX-a tubing only (e.g., Uponor AquaPEX)
• ✔️ Ensure full ring expansion and proper pipe insertion depth
• ✔️ Observe cure times for full joint strength based on ambient conditions

Application Areas

This reducing tee is suited for use in residential and commercial potable water systems, radiant heating, and hydronic distribution. It enables directional transitions where a branch line needs to downsize without compromising pressure or flow performance.

Did You Know?

Fittings made from engineered polymer offer excellent resistance to dezincification, scale buildup, and corrosion—making them a dependable alternative to traditional brass in aggressive water conditions.

When building with PEX-a, the Uponor 1" x 3/4" x 1" Reducing Tee provides a reliable and code-compliant solution that meets today’s mechanical and plumbing standards for long-term system performance.