Uponor LF4701175 Reducing Tee 1x1x3/4 in Propex Brass

Product Description

The UPONOR LF4701175 is a reducing tee fitting designed for use in ProPEX expansion-style PEX piping systems. It connects two 1-inch run lines to a 3/4-inch branch outlet, allowing flow to be diverted or distributed within a hydronic heating, plumbing, or radiant system. The fitting is manufactured from lead-free brass, meeting low-lead compliance requirements for potable water applications. Installation is performed using a ProPEX expansion tool, which expands the PEX tubing over the fitting before the ring contracts to form a secure, leak-resistant joint. Licensed plumbers and mechanical contractors are the primary installers of this component.

This reducing tee is used in residential and light commercial PEX distribution systems where a main 1-inch supply line feeds a 3/4-inch branch line. Typical applications include domestic hot and cold water distribution, hydronic heating manifold branches, and radiant floor heating supply and return headers. The ProPEX end style is proprietary to Uponor and requires compatible ProPEX expansion rings and an expansion tool rated for the corresponding pipe sizes.

Key Features

• Lead-free brass construction suitable for potable water service
• ProPEX expansion end style for a reliable, tool-expanded connection
• Reducing configuration: 1 inch x 1 inch x 3/4 inch nominal sizes
• Compatible with Uponor ProPEX expansion rings and AquaPEX tubing systems
• Compact tee body minimizes flow restriction at the branch transition

Compatibility

Designed for use with Uponor ProPEX-style PEX piping systems requiring a 1 x 1 x 3/4 inch reducing tee connection. Requires ProPEX expansion rings sized to match each port.

Installation Notes

Installation must be performed by a licensed plumber or mechanical contractor familiar with ProPEX expansion tool procedures. Shut off and depressurize the water supply before cutting into any existing line. Use only a calibrated ProPEX expansion tool and correctly sized expansion rings for each port; do not mix ProPEX fittings with crimp or clamp-style connection methods on the same joint. Installations involving potable water must conform to applicable local plumbing codes and ASTM standards for PEX systems.

Technical Specifications

• Connection Size: 1 x 1 x 3/4 inches nominal
• End Style: ProPEX expansion
• Material: Lead-free brass
• Fitting Type: Reducing tee

Standard Information

• Brand: UPONOR
• Manufacturer Part Number: LF4701175