Aluminum Construction; Buna-N Mechanical Seal & O-Ring; Semi-Open, Clog Resistant Impeller 1″ NPT Port Sizes; Self-Priming up to 15 Ft.; Portable, Lightweight Max Temp 180 F; Max Working Pressure 75 PSI; Delivers up to 39 PSI; Max 75 GPM HP Class is for marketing purposes & does not indicate actual engine horsepower Run Time: 1.2 Hours; Tank Size: .52 Gallons Product Description AMT 1G4XAR 1″ NPT Dewatering Utility Pump, Aluminum, 4HP Briggs & Stratton 4-Cycle, 39 PSI, 75 GPM, Buna-N Seal. The IPT line of Engine Driven Utility pumps offers economy, durability, portability and performance all in one neat package. Ideal for general purpose dewatering, irrigation, spraying, washdown and agricultural applications. IPT Model 1G4XAR model has a Briggs & Stratton engine that delivers 75 GPM. This pump includes a heavy duty steel roll frame and two garden hose adapters with no built-in check valve. Aluminum Construction; Buna-N Mechanical Seal and O-Ring; 1″ NPT Port Sizes; Self-Priming up to 15 Ft; Semi-Open, Clog Resistant Impeller; Dual Volute Design; Engine OHV, 4-Cycle Briggs & Stratton; Portable, Lightweight. NOTE: Dimensions have a tolerance of +/- 1/8″.