Required insert for use when connecting SharkBite push-to-connect fittings to 1-1/2" PEX tubing. The stiffener slides inside the PEX pipe to maintain its round shape, ensuring a secure and leak-free connection with the push fitting.

• Required when connecting SharkBite fittings to PEX tubing
• Maintains pipe shape inside push-to-connect fittings
• For use with 1-1/2" PEX-A, PEX-B, and PE-RT pipe
• Not required for copper or CPVC connections
• Lead-free brass construction
• Size: 1-1/2"