Uponor Q4627575 Propex X Mnpt Adapter 3/4 Inch

Product Description

The UPONOR Q4627575 is a 3/4-inch nominal adapter designed to connect ProPEX expansion-style PEX tubing to male NPT threaded fittings. Built from engineered polymer, this adapter provides a corrosion-resistant, lightweight alternative to brass or copper fittings in potable water and hydronic piping applications. The ProPEX end requires a compatible expansion tool and ring for a secure, leak-resistant joint, while the MNPT end threads directly into standard NPT female ports. Licensed plumbers and PEX installers use this fitting when transitioning from PEX distribution lines to threaded equipment, valves, or manifold connections.

This adapter is suited for residential and light commercial plumbing systems where PEX tubing terminates at threaded connections such as shutoff valves, water heaters, fixtures, or manifold ports. It is intended for use with the ProPEX expansion method, which uses an expansion tool to enlarge the pipe and ring before the fitting is inserted. Proper ring sizing and expansion tool compatibility must be confirmed before installation.

Key Features

• 3/4-inch nominal size for standard PEX distribution line applications
• ProPEX expansion-style inlet for secure, tool-expanded joints
• Male NPT outlet threads into standard female NPT ports
• Engineered polymer construction resists corrosion and scale buildup
• Lightweight design simplifies handling in tight rough-in spaces

Compatibility

Designed as an OEM-style fitting for use with ProPEX expansion-method PEX tubing systems at 3/4-inch nominal pipe size.

Installation Notes

Installation of this adapter must be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC requirements. Shut off the water supply and relieve system pressure completely before working on any fitting. A ProPEX expansion tool and correctly sized expansion rings are required for the PEX end; do not use insert or crimp methods with this fitting style. Thread the MNPT end into the receiving female port using an appropriate thread sealant or tape rated for potable water service.

Technical Specifications

• Nominal Size: 3/4 inch
• End Style: ProPEX x MNPT
• Material: Engineered Polymer

Standard Information

• Brand: UPONOR
• Manufacturer Part Number: Q4627575