Product Description CUT. PUSH. DONE. The SharkBite 50 Pack, 1 inch, PEX Cinch Barb Clamps make PEX barb fitting connections. Use with Cinch Tool on cross link polyethylene PEX tubing connections. After clamping you can immediately test each fitting to well over 100 PSI. After clamping you can immediately test each fitting to well over 100 PSI. The SharkBite Connection System makes any plumbing project fast and easy thanks to unique push-to-connect technology. When you insert a pipe into a SharkBite quick-connect fitting, the fitting's stainless-steel teeth bite down and grip the pipe, while its special O-ring compresses to create a watertight seal. No soldering, no clamps, no glue. SharkBite products work with your existing plumbing, are easy to disassemble for changing and reusing fittings, and can be rotated for installation in tight spaces. Whether you need to repair a broken pipe or plumb a whole house, SharkBite provides a push-to-connect solution and leak-free results. From the Manufacturer SharkBite UC956A Clamp Ring 1-Inch