Oetiker 3/4-inch Stainless Steel PEX Cinch Clamp Rings For PEX Tubing Pipes, 50-pack 3/4-Inch stainless steel cinch clamps with PEXGrip Technology Connect PEX to crimp type fittings in hard to reach spaces Just Pinch the tab closed with a PEX tool to make the connection Interlocking ring that forms a complete 360-Degree watertight seal around PEX Tubing Made in The USA - ASTM F877/F2098