Called the Caddy SuperFix 454, this easy-to-close clamp facilitates the installation of 1/2 to 4-in. diam steel and copper pipe. A unique hinged design permits user to close the clamp with one hand without turning a screw. After pipe is installed, merely tighten the screw to secure the pipe in place. Erico, Inc., Solon, OH • Nominal Pipe Size P – 4" – 0 • Max. RecLoad (lbs) - 300