Oetiker brand 3/4" Stainless Steel Clamps are for use with a PEX Clamp (Cinch) Tool, 3/4" PEX tubing and 3/4" crimp style PEX fittings.
All Oetiker PEX clamps are manufactured in the USA, in accordance with ASTM standard F2098 for PEX stainless steel clamps and are NSF certified.