FloJet N5100050A 3/8 inch (10 mm) air operated Geolast diaphragm pump 9.5 lpm 5.6 bar (80 psi)Flojet N5100 industrial air driven pump Geolast diaphragm Geolast check valve Acetal Copolymer pump body For light general commercial and industrial applications For handling a broad range of chemicals Plug in hose connections for quick installation Excellent chemical compatibility Variable capacity from zero to the maximum flow No pressure relief or bypass plumbing required Excellent self priming to 8. 5 m (28 ft) Pump may be located above the liquid