Uponor Q4757555 Propex Reducing Tee 3/4x1/2x1/2 in

Product Description

The UPONOR Q4757555 is a ProPEX reducing tee designed for PEX piping systems in residential and light commercial plumbing applications. It transitions from a 3/4-inch run to two 1/2-inch branch connections, making it a practical fitting wherever the main line steps down to serve individual fixtures or zones. The body is molded from 20% glass-reinforced polymer, which delivers the rigidity and chemical resistance required for potable water distribution. Licensed plumbers and hydronic system installers use this fitting as a standard component when roughing in PEX supply lines.

This reducing tee is suited for residential hot and cold water distribution systems, radiant heating supply and return manifold branches, and light commercial plumbing where PEX is the specified pipe material. The ProPEX end style requires a ProPEX expansion tool and the corresponding PEX rings or expansion sleeves for proper assembly. It is intended for use with PEX-a pipe that meets the dimensional requirements for the ProPEX connection system.

Key Features

• 3/4 x 1/2 x 1/2 inch nominal reducing configuration for stepping down main supply lines
• ProPEX end style for reliable, expansion-based connections
• 20% glass-reinforced polymer construction for dimensional stability and chemical resistance
• Domestic manufacture
• Compact fitting profile suited for tight framing cavities and manifold installations

Compatibility

Designed as an OEM-style ProPEX fitting for use with PEX-a piping systems that utilize the ProPEX expansion connection method at 3/4-inch and 1/2-inch nominal sizes.

Installation Notes

Installation requires a calibrated ProPEX expansion tool and the correct size PEX expansion rings or engineered sleeves — do not substitute crimp or clamp tooling with ProPEX fittings. Shut off the water supply and depressurize the line before cutting into any existing piping. Work must comply with applicable local plumbing codes and is typically performed by a licensed plumber. Allow expanded connections to recover fully before pressurizing the system.

Technical Specifications

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

Standard Information

• Brand: UPONOR
• Manufacturer Part Number: Q4757555