RIDGID 50557 1450 Pressure Test Pump, Hydraulic Pressure Test Kit Designed to pressure test all types of piping systems for leaks, including heating, compressed air, refrigeration, oil, sprinkler and small bore pipeline systems Features a patented variable lever-arm design and automatic pressure holding valves that enable fast, easy pressurization while reducing the handle force required Versatile hydraulic pressure test pump is a lightweight 14 pounds (6.4 kg) and features a handle that locks easily for convenient transport; 3.6-gallon (13.6 liter) reservoir doubles as a handy tool box Corrosion-proof construction offers durability; replaceable dirt filter keeps components clean 725 PSI maximum pressure; 38 cm3 volume/stroke