Uponor Q4757557 Propex Reducing Tee 3/4x1/2x3/4 in

Product Description

The UPONOR Q4757557 is a ProPEX reducing tee designed for PEX piping systems in residential and light commercial plumbing and hydronic applications. It features a 3/4 x 1/2 x 3/4 inch nominal configuration, allowing branch connections where a reduced 1/2 inch outlet is needed off a 3/4 inch main run. The fitting body is constructed from 20% glass-reinforced polymer, which provides dimensional stability and resistance to pressure and temperature cycling common in PEX distribution systems. Installation requires a compatible ProPEX expansion tool and rings. Licensed plumbers and pipefitters are the primary installers for this type of fitting.

This reducing tee is suited for potable water distribution, hydronic heating branch runs, and radiant system manifold connections where PEX tubing is the specified pipe material. The ProPEX end style requires expansion of the pipe and ring before the fitting is inserted, forming a leak-resistant mechanical joint as the expanded material recovers. The domestic designation indicates the fitting is manufactured in the United States, which may be relevant for projects with domestic content requirements.

Key Features

• 3/4 x 1/2 x 3/4 inch nominal reducing tee configuration for branch reduction off a main run
• ProPEX end style for use with the Uponor expansion tool and ProPEX rings
• 20% glass-reinforced polymer body for dimensional stability under thermal cycling
• Domestic manufacture for projects with buy-domestic or specification requirements
• Compatible with standard PEX-a tubing used in potable water and hydronic systems

Compatibility

Designed for use in ProPEX PEX-a piping systems requiring a 3/4 x 1/2 x 3/4 inch reducing tee connection. Specific compatible models or system families were not provided in the product data; consult Uponor system documentation for full fitting compatibility details.

Installation Notes

Installation must be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC) where adopted. Shut off the water supply and depressurize the system before beginning any fitting work. Use only the manufacturer-specified ProPEX expansion tool and correctly sized ProPEX rings to ensure a proper mechanical joint. Do not use compression or crimp-style tooling with ProPEX fittings.

Technical Specifications

• Nominal Size: 3/4 x 1/2 x 3/4 inches
• End Style: ProPEX
• Material: 20% Glass-Reinforced Polymer
• Origin: Domestic

Standard Information

• Brand: UPONOR
• Manufacturer Part Number: Q4757557