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Stainless steel piston with aluminum body. Designed for use in testing pipe lines, pressure tanks and pressure vessels. Uses check valves which are more effiicient and longer lasting than old poppet system. Cylinder Displacement: 1.37 cu. in. 0-1000 PSI pressure gauge, 10' high pressure hose and quick disconnect coupler included. Piston: 7/8" w/ 2" stroke.
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