Sharkbite 1" Disconnect and Depth Gauge Tool for PVC Fittings. This tool is designed to release Sharkbite PVC IPS Fittings from Sch. 40, 80, 120 PVC Pipe. It features a clip that releases the fitting on the White Collar of the fitting. The tool also serves as a safe seal depth gauge to mark the PVC Pipe to ensure the fitting has been inserted to the proper depth.