STA-RITE Pumps Cast Iron HP Series High Pressure Boosters are among the most durable booster pumps available. STA-RITE’s SignaSeal floating impeller design minimizes thrust loads allowing for continuous operation without damage to motor bearings, mechanical seal, or pump hydraulic components. These pumps are not suitable for domestic water applications. STA-RITE Pumps proven SignaSeal staging system utilizes a ceramic wear surface that dominates with 1st-in-class performance. Superior sand-handling and thrust management staging system Precision-molded acetal impellers for perfect balance. Ultra-smooth for highest performance and efficiency Precision-molded diffusers offer superior performance with high resistance to corrosion and abrasion Precision lapped and highly polished carbon-ceramic mechanical shaft seal with stainless steel parts guarantees continuous water lubrication Superior motor winding insulation materials protect against excessive moisture and contaminants assuring prolonged motor life Precision rotor is die-cast under high pressures for uniform performance and greater efficiency All electrical components are protected from dirt, dust, and insects by a dustproof canopy which the ventilating air cannot contaminate. Pumping applications include Commercial or agricultural pressure washing– i.e. process water, irrigation. Booster and spray systems, Filtration and reverse osmosis, HVAC & General purpose pumping. This pump has a limited 1-year manufacturer warranty.