Sea Tech With just a snap, quickly install these fittings or valves on hot or cold water lines! Unique, patented, quick connection system significantly reduces installation labor without the need of special tools. High performance design allows for simple connections to PEX (plastic) CPVC, and copper tubing. FDA approved. Meet or exceed the RVIA standards and are certified and tested to ANSI, NSF, and ASTM standards. Priced each.