Hydro Vacuum FZR Series single-stage pumps are designed to pump clean and dirty water and other liquids. They are equipped with a multi-vane one-side open impeller and a grinding device for pumping liquids contaminated with long-fibre content. The motor enclosure in FZR pumps is filled with mineral oil to dissipate heat properly. Choose from a wide range of single-stage pumps, available in voltage ratings of 400 and 230VAC on Raptor Supplies.