SharkBite U4008LF Push-Fit Polybutylene Conversion Coupling, Lead-Free

SharkBite U4008LF Push-Fit Polybutylene Conversion Coupling, Lead-Free

The SharkBite U4008LF is a lead-free push-fit conversion coupling designed to transition polybutylene pipe to copper, CPVC or PEX tubing without soldering, clamps, unions or glue. Available in 1/2" and 3/4" sizes to match common polybutylene pipe diameters, this coupling is built on the SharkBite push-fit connection system and is certified to 200 psi and 200 degrees F. It is rated for underground applications as well as use as a manufactured joint without access panels, giving plumbers and contractors a fast, reliable way to repair or upgrade aging polybutylene water distribution systems in place, cutting rough-in time compared to traditional soldered or glued transitions.

Key Features

• Trade Size: Available in 1/2" and 3/4" sizes for common polybutylene water distribution lines.
• Polybutylene Conversion: Transitions polybutylene pipe to copper, CPVC or PEX with a single push-fit connection.
• Push-Fit Connection: No soldering, clamps, unions or glue required, allowing a quick, tool-free installation in tight rough-in spaces.
• Pressure and Temperature Rating: Certified to 200 psi and 200 degrees F for standard water distribution service.
• Multi-Material Compatibility: Fits copper, CTS CPVC and PEX tubing in any combination for maximum flexibility on the job.
• Underground and Concealed Use: Certified for underground applications and as a manufactured joint without access panels, ideal for slab and behind-the-wall installations.
• Lead-Free Construction: Manufactured to lead-free (LF) specifications for potable water applications.

Certifications & Compliance

• Meets UPC, IPC and Canadian plumbing code requirements
• Certified for underground applications and as a manufactured joint without access panels
• Lead-Free (LF)

Technical Specifications

• Size Range: 1/2", 3/4"
• Pressure Rating: 200 psi
• Temperature Rating: 200 degrees F
• Compatible Materials: Copper, CPVC, PEX
• Connection Type: Push-Fit
• Packaging: 6 ea

Typical Applications

• Polybutylene Pipe Repair and Replacement
• Residential and Commercial Rough-In Plumbing
• Underground Water Distribution Repairs
• Concealed and Behind-the-Wall Connections
• Renovation and Retrofit Plumbing Projects

Why SharkBite?

SharkBite's push-fit connection system gives plumbers a code-compliant, lead-free way to convert polybutylene pipe to modern copper, CPVC or PEX tubing without soldering, clamps or glue. With a 200 psi / 200 degrees F rating and certification for underground and concealed manufactured joints, the U4008LF coupling delivers a dependable, tool-free repair solution built for professional rough-in work across both 1/2" and 3/4" sizes.