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




N/A 579504

Size CTS

N/A 3/4 inches

NOTICE: Plus shipping & handling charges to apply

N/A "International orders and orders slated for export require special handling and additional documentation. We will contact you with the necessary details to facilitate a timely delivery and proper payment method."