Uponor Q4751531 Reducing Tee 1-1/2x1-1/4x1 in Propex

Product Description

The UPONOR Q4751531 is a reducing tee fitting designed for use in ProPEX expansion-style PEX piping systems. Constructed from modified polyphenylsulfone (MPPSU), this fitting connects three pipe runs at different diameters: 1-1/2 inches, 1-1/4 inches, and 1 inch nominal sizes. The ProPEX end style requires a ProPEX expansion tool to expand the pipe and sleeve before insertion, creating a strong, reliable joint as the material returns to its original size. Licensed plumbers and mechanical contractors install this fitting in hydronic heating, potable water distribution, and radiant systems where reducing branch connections are needed.

This reducing tee is suited for residential and light commercial plumbing and hydronic applications where flow must be distributed or reduced across three pipe sizes in a single fitting. The ProPEX connection method is common in new construction and retrofit projects using Uponor PEX-a pipe. The fitting is domestically manufactured, which may satisfy Buy American or project specification requirements on applicable job sites.

Key Features

• Three-way reducing configuration: 1-1/2 x 1-1/4 x 1 inch nominal
• ProPEX end style for use with PEX-a expansion tooling
• Modified polyphenylsulfone construction for high-temperature and chemical resistance
• Domestic manufacture supports project compliance specifications
• Compatible with Uponor ProPEX expansion system components

Compatibility

Designed for use with Uponor ProPEX PEX-a piping systems at the nominal pipe sizes specified: 1-1/2 inch, 1-1/4 inch, and 1 inch. No additional compatible model numbers were provided in the product data.

Installation Notes

Installation requires a calibrated ProPEX expansion tool and correctly sized PEX-a expansion rings; this fitting is not compatible with crimp or clamp ring installation methods. Shut off and depressurize the water supply or hydronic system before making any connections. Work should be performed by a licensed plumber in accordance with local plumbing codes and applicable IPC or IMC requirements. Allow expanded joints adequate time to recover before pressure testing the system.

Technical Specifications

• Nominal Size: 1-1/2 x 1-1/4 x 1 inches
• End Style: ProPEX
• Material: Modified Polyphenylsulfone (MPPSU)
• Country of Origin: Domestic

Standard Information

• Brand: UPONOR
• Manufacturer Part Number: Q4751531