The Hypro Roller Pump 7700N, previously known as 7700N-A, has 7 Super Rollers, Ni-Resist pump body, stainless steel shaft, and Viton seals. Designed by Hypro for spraying and transferring liquids such as liquid fertilizers, emulsives, herbicides, aromatic solvents, insecticides, and other hard-to-handle fluids.