DIAPHRAGM PUMP MAXIMUM PRESSURE 1500PSI THREADED INLET PORT (NPT) 1/2IN THREADED OUTLET PORT (NPT) 3/8IN SHAFT DIAMETER 5/8IN REVERSE ROTATION 1750RPM FLOW 2.1L/MIN SHAFT DRIVE (NPT PORTS) MAXIMUM HYDRAULIC END LOAD 0.56GPM (2. 1 L/MIN) HOUSING WITH AISI-316L STAINLESS STEEL NPT PORT DIAPHRAGM AND FKM ORING RING AISI-316L STAINLESS STEEL VALVE SEAT 17-4 ELGILOY VALVE SPRING 17-7 STAINLESS STEEL VALVE SPRING RETAINERS WITH 5W30 COLD TEMPERATURE SYNTHETIC LUBRICATING OIL, HYDRA-C ELL BRAND REFERENCE F21SASGSFEHG