Rwc UR4008A Sharkbite Polybutylene Conversion Coupling

Product Description

The RWC UR4008A is a SharkBite push-to-connect polybutylene conversion coupling designed to transition existing polybutylene pipe systems to PEX, copper, CPVC, or PE-RT without soldering, gluing, or crimping. At 1/2 inch by 1/2 inch, it installs wet or dry, making it practical for active repairs where water cannot be fully cleared from the line. The fitting is rated to 200 psi and 200 degrees F, certified to NSF/ANSI-61 and ASSE 1061 for use in potable water and hydronic heating water distribution. Wetted surfaces contain no more than 0.25% weighted average lead content, meeting current lead-free requirements. Licensed plumbers and pipefitters are the primary installers of this fitting.

The UR4008A is suited for residential and light commercial plumbing applications where aging polybutylene supply lines require replacement or repair. It can be installed underground with appropriate wrapping and behind walls without requiring an access panel, giving installers flexibility in confined or concealed spaces. The gray collar end connects to polybutylene pipe; the tan collar end connects to PEX, copper, CPVC, or PE-RT pipe. Integral tube liners on both the polybutylene and PEX ends eliminate the need for separate insert fittings and prevent loose connections during and after installation.

Key Features

• Push-to-connect design — no soldering, gluing, or crimping required
• Rated to 200 psi and 200 degrees F
• Color-coordinated collars: gray for polybutylene, tan for PEX, copper, CPVC, and PE-RT
• Integral tube liners on polybutylene and PEX ends for secure, rattle-free connections
• Approved for underground burial (wrap required) and concealed behind-wall installations
• Certified to NSF/ANSI-61 and ASSE 1061 for potable water and hydronic heating systems
• Lead-free compliant — no more than 0.25% weighted average lead on wetted surfaces

Compatibility

Compatible with 1/2 inch polybutylene pipe on the gray collar end and 1/2 inch PEX, copper, CPVC, and PE-RT pipe on the tan collar end. Suitable for potable water and hydronic heating water distribution systems.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC guidelines. Shut off the water supply and relieve line pressure before cutting into any existing pipe. For underground burial, wrap the fitting per local code requirements. Verify pipe is cut cleanly and squarely and that the pipe end is fully seated past the fitting's O-ring and collet before pressurizing the system.

Technical Specifications

• Connection Size: 1/2 inch x 1/2 inch
• Pressure Rating: 200 psi
• Temperature Rating: 200 degrees F (93 degrees C)
• Compatible Pipe Types: Polybutylene, PEX, Copper, CPVC, PE-RT
• Certifications: NSF/ANSI-61, ASSE 1061
• Lead Content: 0.25% maximum weighted average on wetted surfaces
• Weight: 0.122 pounds
• Sold As: Each

Standard Information

• Brand: RWC
• Manufacturer Part Number: UR4008A