RAASM: Compatible with water, mineral vegetable oils and diesel oil. Aluminum pump, NBR high nitrile membrane material and hytrel ball valve. 3/8” NPT (f) air inlet connection. ¾” NPT (f) x ½” NPT (f/f) fluid inlet-outlet connection. 30-90 psi air working pressure. Max air pressure: 120psi. Noise level: 75dB. Max solids ø: 0.06”. Modular. Suction-delivery ball valve with spring. 18.5 gpm.