Hi Folks, I have been looking but can not find anyone that makes these anymore. I am looking for 3/4" pipe clamps with the slip clutch on both pieces so that you can slide both ends anywhere on the pipe. The ones that I have are made by PowerPress and are black and yellow in color. I have seen some older photos of black and red ones that I think were Craftsman. I know that Irwin has the ones with the clutches to where you do not need threads but you still have the screw end at the end of the pipe. The ones that I have slide all the way through and those are what I am looking for. Any help would be greatly appreciated. Thank You. Steve