Made of die cast aluminum, these Clippard filters feature a bowl made of polycarbonate, with no bowl shield. The filters have an automatic drain. The Filter Bowl P/N, made of polycarbonate with part number 27055-2. 27055-2 has Filter P/N at 5 microns. The part number 27051 has Filter P/N at 25 microns. Flow rate is 26 Standard cubic feet per minute. Maximum operating pressure of the device recorded at 150 psig. For standard flow, port size would be 1/4" NPT.