SMC AC Series 3 Piece Filter/Regulator/Lubricator, 1/4" NPT, 5 Micron, Manual Drain, 8 cubic cm Drain Capacity, No Gauge Air filter, regulator and lubricator unit Clean looking, modular design Energy saving with high flow rate Compact spacer with bracket reduces total assembly space; Improved installation Set pressure range 7.25 - 123 psi