Boost your performance with our high-flow 44GPM air-operated diaphragm pump! Features a robust aluminum alloy body and full-bolted construction, our air diaphragm pump withstands harsh environments. 1.5'' inlet/outlet and a FNPT 1/2'' air inlet for exceptional adaptability. Let's get pumping! | Vevor | | Air Operated Double Diaphragm Pump, 44GPM, Max 115PSI Air Waste Oil Pneumatic Transfer Pump with 2 Extra Diaphragms | Silver | Best Buy