Our self-priming diaphragm pump features an all-bolted stainless steel body and double PTFE diaphragms, sturdy and corrosion-proof, without leakage. Sealed ball valves and non-stall operation provides outstanding performance. It is ideal for transferring viscous and flammable fluids. Our self-priming diaphragm pump will ensure your operations are flowing smoothly. | Vevor | | Air-Operated Double Diaphragm Pump, 1/2 in Inlet & Outlet, Stainless Steel Body, 3 GPM & Max 90 PSI | White;Black | Best Buy