Motorad T68 Engine Coolant Reservoir Cap Allows you to test the cooling system and your radiator pressure cap. Attachment Type: Threaded Color: Black Material: Plastic Maximum Pressure Rating: 5 PSI Pressure Release Lever: No Type: Standard Prop 65: WARNING: Cancer and Reproductive Harm - www.p65WARNINGs.ca.gov Maintains proper cooling system pressure Easy installation and removal 100% tested to ensure proper pressure and longevity Meets all OEM specifications