Uponor Q4751317 Reducing Tee 1-1/4 X 1 X 3/4 Inch Propex

Product Description

The UPONOR Q4751317 is a reducing tee fitting designed for use in ProPEX expansion-style PEX piping systems. It connects three pipe runs of differing sizes, with a 1-1/4 inch run, a 1 inch run, and a 3/4 inch branch, all in a single body. Constructed from modified polyphenylsulfone (MPPSU), this fitting resists heat, pressure, and chemical exposure common in hydronic and domestic water applications. Licensed plumbers install this fitting as part of residential and light commercial water distribution assemblies where branch reductions are required at distribution points.

This fitting is suited for new construction and remodel plumbing projects using ProPEX end-style connections. Typical installations include main-to-branch transitions in domestic hot and cold water systems, as well as hydronic heating distribution manifold branch runs. The ProPEX end style requires a compatible expansion tool and PEX-A tubing for proper installation. This is a domestically sourced fitting intended for use where local codes or project specifications require domestic-origin materials.

Key Features

• Reducing tee configuration: 1-1/4 inch x 1 inch x 3/4 inch nominal sizes
• ProPEX expansion end style for use with PEX-A tubing and compatible expansion tooling
• Modified polyphenylsulfone construction for high heat and pressure resistance
• Single-body design handles three-way branch reduction in one fitting
• Domestically sourced to meet project origin requirements

Compatibility

Designed for use in ProPEX expansion-style PEX-A piping systems requiring a reducing tee connection at 1-1/4 inch, 1 inch, and 3/4 inch nominal pipe sizes.

Installation Notes

Installation requires a calibrated ProPEX expansion tool sized for each connection diameter and compatible PEX-A tubing. Shut off the water supply and depressurize the line before making any connections. Work must conform to applicable local plumbing codes and IPC standards. Do not use this fitting with PEX-B or PEX-C tubing, or with non-ProPEX crimp or clamp connection methods.

Technical Specifications

• Nominal Size: 1-1/4 x 1 x 3/4 inches
• End Style: ProPEX
• Material: Modified Polyphenylsulfone
• Origin: Domestic

Standard Information

• Brand: UPONOR
• Manufacturer Part Number: Q4751317