HYPRO ROLLER PUMP Brand new HYPRO NI-RESIST Roller Pump. High volume and pressure. For livestock spraying, fertilizer application, weed and pest control. Spray wettable powders and chemicals. CCW (reverse by disassembling and reversing rotor in housing). NI-RESIST for more corrosive chemicals. Ni-resist features high nickel content to give longer life. IDEAL FOR WETTABLE POWDERS.