Vibration-Dampening Strut Clamp, Clamp Material Steel, Clamp Material Finish Zinc Chromate, Clamp Type Strut Clamp, Cushion Material Polypropylene, For Copper Tube Size 3 in, For Maximum Outside Diameter 3 1/8 in, For Strut Channel Width 1 5/8 in, Installed Height 4 37/64 in, Maximum Operating Temperature 145 Degrees F, Mount Type Strut Channel