This collection covers two-hole pipe straps and clamps in sizes from 1/2 inch through 2 inches. It includes C&S copper-plated and pre-galvanized steel 2-hole straps, HoldRite plastic standard pipe clamps and tube hangers, stand-off straps for CPVC, and supports from Sioux Chief and nVent Caddy.
Choose the strap size by the pipe outside diameter, not the nominal size alone. Use copper-plated straps on copper tube, galvanized straps on steel pipe, and plastic clamps on PEX and CPVC to prevent abrasion and galvanic contact. Space supports as your plumbing code requires, and use stand-off straps where pipe must clear the mounting surface.