Oatey 1 in. Steel Clevis Pipe Hanger 33548 - The Home Depot
The Plumber's Choice 3/4 in. Hinged Split Ring Pipe Hanger, Galvanized Iron Clamp with 3/8 in. Rod Fitting, for Suspending Tubing (10-Pack) 34HSHG-10 - The Home Depot
Guide to Clamps and Hangers - White Cap
Oatey 3/4 in. x 6 in. Steel Wire Hook Pipe Hanger 33533 - The Home Depot