KNF Model UNF600 series diaphragm liquid pumps for larger scale pumping. Self priming for excellent pressure performance. Four separate diaphragm technology for smoother pumping and max efficiency Up to 6L/Min flow rate, with suction head 9.8ft H20 and pressure head at 14.5PSI. Chemically resistant parts made from Polypropylene, PVDF, EPDM, FFPM and coated PTFE. Fluid temp range up to 80 Deg C. Model has a 24V BDC motor with protection factor IP54. Unwired.