Uponor 39133 Pex-a Expansion Ring 3/4 Inch Bag of 25

Product Description

The UPONOR 39133 is a 3/4-inch PEX-A expansion ring and sleeve designed for use with PEX-A tubing in ProPEX-style connections. These rings are expanded along with the tubing end using a compatible expansion tool, then slipped over the ProPEX fitting body. As the expanded ring and tubing contract to their original diameter, they create a strong, leak-resistant mechanical joint. Licensed plumbers and pipefitters install these rings in both residential and light commercial hydronic and potable water systems. Each bag contains 25 rings, making it a practical quantity for ongoing service work or new construction rough-in.

These expansion rings are suited for 3/4-inch PEX-A tubing installations in potable water distribution, radiant heating, and hydronic piping applications. The ProPEX expansion method is widely used in residential new construction and remodel work where reliable, repeatable connections are required. Installation follows standard expansion-style PEX joining procedures compatible with ASTM F1960 fittings and tooling.

Key Features

• 3/4-inch size fits standard 3/4-inch PEX-A tubing
• Designed for ProPEX-style expansion connections per ASTM F1960
• Bag of 25 rings provides a job-ready quantity for rough-in or service
• Expansion-style joint creates a strong, memory-driven mechanical seal
• Compatible with potable water, radiant heat, and hydronic piping systems

Compatibility

Designed for use with 3/4-inch PEX-A tubing and ProPEX-style expansion fittings following ASTM F1960 standards. No additional specific model compatibility was provided in the product data.

Installation Notes

Installation requires a compatible PEX expansion tool sized for 3/4-inch tubing. Always follow the tubing and fitting manufacturer instructions for proper expansion depth and ring seating. Depressurize and drain the affected piping section before making repairs or modifications to an existing system. Work should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC guidelines.

Technical Specifications

• Tubing Size: 3/4 inch
• Tubing Type: PEX-A
• Connection Type: ProPEX Expansion (ASTM F1960)
• Quantity per Bag: 25
• UPC: 811734021540

Standard Information

• Brand: UPONOR
• Manufacturer Part Number: 39133