Oetiker brand 1/2" Stainless Steel Clamps are for use with a PEX Clamp (Cinch) Tool, 1/2" PEX tubing and 1/2" crimp style PEX fittings.
All Oetiker PEX clamps are made in the USA, manufactured in accordance with ASTM standard F2098 for PEX stainless steel clamps and are the only PEX cinch clamps which are NSF certified.