Sharkbite 3/4" Disconnect and Depth Gauge Tool. 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, ensuring a safe and secure connection. The tool also serves as a depth gauge, marking the PVC pipe to ensure the fitting has been inserted to the proper depth.