Uponor LF4707575 Propex Brass Tee 3/4 Inch

Product Description

The UPONOR LF4707575 is a 3/4-inch ProPEX brass tee fitting designed for use in PEX piping systems. This lead-free brass fitting creates a three-way branch connection, allowing a single supply line to split into two directions or joining branch lines back to a main run. The ProPEX connection style requires an expansion tool to flare the PEX tubing before the fitting is inserted, creating a tight, reliable joint as the tubing contracts around the fitting body. Plumbers and pipefitters install this fitting in residential and light commercial hydronic, potable water, and radiant heating applications.

This tee is sized at 3/4 inch on all three ports, making it a straight tee suitable for equal-size branch connections within a PEX distribution system. It is used in manifold-based plumbing layouts, radiant floor heating supply and return circuits, and domestic hot and cold water distribution. The ProPEX expansion method is a common standard in new construction and remodel plumbing where PEX-A tubing is specified.

Key Features

• Lead-free brass construction meets low-lead requirements for potable water systems
• ProPEX expansion-style connection on all three ports
• 3/4-inch uniform port sizing for straight three-way branch connections
• Compact body profile suits tight framing cavities and mechanical spaces
• Compatible with the ProPEX expansion tool system for consistent, repeatable joints

Compatibility

Designed as an OEM-style ProPEX fitting for use with 3/4-inch PEX-A tubing in residential and light commercial potable water and hydronic piping systems.

Installation Notes

Installation requires a calibrated ProPEX expansion tool and the appropriate 3/4-inch expansion ring. Shut off the water supply and depressurize the system before making any connections. Allow expanded tubing to sit on the fitting for a minimum cure period before restoring pressure, following the tubing manufacturer guidelines. Work must comply with local plumbing codes and, where applicable, the International Plumbing Code (IPC).

Technical Specifications

• Connection Type: ProPEX expansion
• Port Size: 3/4 inches (all ports)
• Material: Lead-free brass
• Configuration: Straight tee (equal-size, three-port)

Standard Information

• Brand: UPONOR
• Manufacturer Part Number: LF4707575