Sioux Chief 645WGC Series No-Lead CPVC x F1960 PEX Transition Coupling

Sioux Chief 645WGC Series No-Lead CPVC x F1960 PEX Transition Coupling

The Sioux Chief 645WGC Series transition coupling joins CPVC pipe to F1960 PEX cold-expansion fittings, giving plumbing professionals a single fitting for moving between two piping materials on a rough-in run. This coupling series is available in 1/2" and 3/4" CPVC x F1960 PEX sizes, so installers can match the fitting to the pipe size on hand. Its no-lead construction suits potable water distribution applications where lead-free components are required by code, and the compact coupling body installs quickly in tight rough-in spaces. The 645WGC Series covers two model configurations, 645WGC2 and 645WGC3, spanning the 1/2" and 3/4" size range, and cartons ship 50 EA for efficient truck and job-site stocking on remodel and new-construction plumbing work.

Key Features

• Trade Size Range: Available in 1/2" and 3/4" CPVC x F1960 PEX connections sized for standard residential and commercial piping runs.
• Quick, Easy Transition: Purpose-built single coupling connects CPVC pipe directly to F1960 PEX cold-expansion fittings without stacking extra adapters or reaching for specialty crimp tools.
• No-Lead Construction: Manufactured to no-lead specifications for use on potable water supply lines where lead-free components are required.
• Two Model Configurations: Offered as 645WGC2 and 645WGC3 across the 1/2" and 3/4" size range so installers can match the coupling to the job's connection requirements.
• CPVC Compatibility: Threads and seats directly onto CPVC pipe for a secure, code-compliant joint on the CPVC side of the transition.
• F1960 PEX Compatibility: Mates with F1960 cold-expansion PEX fittings for a leak-resistant transition on the PEX side.
• Job-Site Ready Packaging: Packaged 50 EA per carton for efficient distributor stocking and bulk purchasing.

Technical Specifications

• Series: 645WGC
• Connection Type: CPVC x F1960 PEX
• Country of Origin: China

Typical Applications

• CPVC to PEX Pipe Transitions
• Potable Water Distribution Lines
• Residential and Commercial Plumbing Installations
• Remodel and Repair Plumbing Work
• New Construction Rough-In Plumbing
• Distributor and Contractor Truck Stock

Why Sioux Chief?

Sioux Chief builds the 645WGC Series with no-lead materials to help contractors meet potable water requirements while keeping CPVC-to-PEX transitions fast and straightforward on the job. Offered across the 1/2" and 3/4" size range with two model configurations, 645WGC2 and 645WGC3, plumbing professionals and distributors can standardize on a single trusted coupling series for reliable, code-compliant transitions instead of juggling multiple adapter brands. The 50 EA carton packaging also makes this coupling easy to stock, so installers always have the right fitting on hand for the next CPVC-to-PEX connection.