Performance Information Max. flow rate: 104 gpm/394 lpm (free flow) Max. pressure: 70 psi/4.8 bar (Shut off) Max. fluid temperature: 140F/60C Other Attributes Close-coupled, gas engine-driven 5.5 hp Briggs and Stratton gas engine Housing: cast iron Port sizes: 1 1⁄2'' NPT inlet, 1 1⁄4'' NPT outlet Impeller: glass-filled nylon Pump seals: Viton/ceramic standard (Buna-N/ ceramic and Viton/silicon carbide available) Weight: 53 lbs./24.1 kg