Accuracy /-.2 PSID @ 5, 2 & 1 PSID Descending The Gage-It backflow preventer test kits are compact, lightweight and portable testing devices. They come equipped with a gauge, hoses and all required adapter fittings. These are three-valve test kits used for testing all Reduced Pressure Principle, Double Check Valve, Spill Resistant and Pressure Type Vacuum Breaker backflow preventers. Specifications Carrying Case: easy opening with spacious fitting/tool compartments Maximum Working Pressure: 175 PSI Maximum Working Temperature: 210º F (FREEZING TEMPERATURES MUST BE AVOIDED) Gauge Manufacturer: Orange Research (See accuracy above) Test Valves: (2) Ball Valves and (1) Needle Valve Hoses: (3) 4′ with female threaded swivel couplings Adapters: (3) 1/4″ flare x 1/4″ npt adapters (3) 1/4″ flare x 1/2″ npt adapters (3) 1/4″ flare x 3/4″ npt adapters Moisture resistant instruction guide Certificate of Calibration: Includes a 1 year N.I.S.T. traceable certificate All kits carry a 1 year warranty