all other models equipped with K7 flow actuated unloader

and the Quick Repair Pump system on the SP340 and SP380 lets you repair the pump on the spot and keep moving

Glycerin filled gauge for accurate pressure reading

mix with water at a 1:128 (1 oz

2 GPM 3400RPM 3

YU21405 Unloader Green Spring 1085*-1245 all other models equipped withFEATURES: NEW improved design, trapped pressure unloader Reduced pressure loss Extremely reliable Easy maintenance SPECIFICATIONS: Maximum volume: 21 GPM Maximum pressure: 4500 PSI Maximum temperature: 195F. The valve is designed for continuous use at a water temperature of 140F. It can operate for short periods at a maximum temperature of 195F. Inlet: Dual 1 2" FPT Discharge: 1 2" FPT Bypass: 1 2" FPT