The Plumber's Choice 1-1/2 in. Steel Cable Clamp; Hangs Tubing, Wiring, Ropes, for PEX, Plumbing, Marine, Automobile; Galvanized 112CPSWG - The Home Depot
12 Pack 1 3/4 Inch Stainless Steel Cable Clamps, Metal Pipe Clamps Wire Clamps Conduit clamps for Tube, Pipe or Wire Loom Installation, Rubber Cussioned - Walmart.com