3 Pack, Disconnect & Depth Gauge Tools, Can Be Used To Release A Sharkbite PVC IPS Fitting From Schedule 40, 80, 120 PVC Pipe, Contains 1/2", 3/4" & 1" Disconnect Clip, Clip Will Release The Fitting On The White Collar Of The Fitting, PVC Disconnect Clip Also Serves As A Safe Seal Depth Gauge To Mark The PVC Pipe To Ensure The Fitting Has Been Inserted To The Proper Depth.