Fairchild Industrial Products P/N 208103U, Model 20, 1:6 Ratio, Aluminum Body, Nitrile or Dacron Diaphragm, 3/8"BSPT Female Connection, 45 SCFM with 100 PSIG Supply and 20 PSIG Output Flow Capacity, 250 PSIG Maximum Supply, Air Pressure Volume Booster