The Hypro 4101N-AEH Roller Pump is made of a Ni-Resist pump body, Viton seals, stainless steel shaft and 4 Super Rollers. The Hypro 4101N is coupled with a 12 Volt DC motor to create the 4101N-AEH. Most commonly used in industrial and agricultural spraying and liquid transfer of hard-to-handle fluids. Note: Not suitable for use with powdered chemicals.