Uponor LFP4511010 Propex Press Adapter 1in Pex X Copper

Product Description

The UPONOR LFP4511010 is a ProPEX Press Adapter designed to transition between 1-inch PEX tubing and 1-inch copper pipe. Manufactured from lead-free (LF) brass, this fitting meets potable water standards and is suited for plumbing systems where cross-linking polyethylene tubing connects to existing or new copper distribution lines. The ProPEX end accepts a ProPEX expansion ring, while the copper end is sized for standard press or sweat connection. Licensed plumbers and mechanical contractors install this adapter in residential and light commercial hydronic and domestic water systems.

This adapter is used in applications where PEX supply lines meet copper branch lines or copper main distribution piping. Common install scenarios include new construction plumbing, PEX-to-copper transitions at manifolds, and retrofit projects where existing copper infrastructure is being extended or tied into a PEX system. The domestic designation confirms the fitting is manufactured to U.S. standards for use in potable water applications.

Key Features

• Lead-free (LF) brass construction meets potable water compliance requirements
• 1-inch PEX x 1-inch copper end configuration for direct transition between tube types
• ProPEX end style requires ProPEX expansion ring and compatible expansion tool
• Domestic manufacture aligns with Buy American and project specification requirements
• Sized for standard 1-inch nominal plumbing installations in residential and light commercial systems

Compatibility

Designed as an OEM-style ProPEX fitting for use with 1-inch PEX tubing and 1-inch copper pipe in residential and light commercial potable water or hydronic plumbing systems using the Uponor ProPEX expansion method.

Installation Notes

Installation should be performed by a licensed plumber in accordance with local plumbing codes and IPC guidelines. Shut off and depressurize the water supply before beginning work. The ProPEX end requires proper expansion using a compatible ProPEX expansion tool and a correctly sized expansion ring — do not attempt to install without the expansion method. Verify copper end preparation and connection method (press or sweat) matches the tools and fittings on hand before proceeding.

Technical Specifications

• Nominal Size: 1 inch x 1 inch
• End Style: PEX x Copper
• Connection Method: ProPEX (expansion) x Copper
• Material: Lead-Free Brass
• Country of Origin: Domestic (USA)

Standard Information

• Brand: UPONOR
• Manufacturer Part Number: LFP4511010