Power Strut PS 1300 1" Pipe Clamp Rigid Thin Wall For Conduit NIB 277B. Some of them are just another company or color but all are the same size. New old stock complete with nut and bolt. This Power Strut PS 1300 1" Pipe Clamp is the perfect solution for securely mounting your rigid metal conduit. The track mount style and screw connection type make installation a breeze. Made of high-quality steel, this clamp is durable and built to last. With its multicolor design and sleek look, it's sure to blend in seamlessly with your existing electrical setup. This unit is brand new in box and manufactured in the United States. It's an ideal accessory for anyone looking to make their electrical equipment setup more efficient.