John Guest’s state-of-the-art polymer material gives ProLock toughness you can trust. And that’s just part of the story – see what else sets ProLock apart.
roLock fits everything, everywhere: copper, PEX, or CPVC. No adaptations, modifications, or tools. Ever.

• Code Approved/for behind the wall installations
• Twist to Lock Technology
• A Permantent Leak Proof Seal
• UV Stabilized
• 25 Year Warranty against defects in materials or manufacturing
• For Use with Copper, PEX, and CPVC Pipe