B-Line Vibra-Clamp™ Pipe Clamp, 2-Piece, 3-1/2 in Pipe, 1000 lb Load, Channel Mounting, For Use With: Iron Pipe/Rigid Conduit, Specifications: 400 V/mil Dielectric Strength, Low Carbon Steel, Yellow Zinc Plated, 5.55 in H x 4.74 in W Dimensions, -40 to 300 deg F