SMC AW40-N04DH-RZ-A Filter/Regulator, Modular F.R.L. MSRP: Now: $77.45 Was: AW10-A to AW40-A, Filter Regulator, Metric, North American & EuropeanSMC S series AW-A is a combination filter/regulator, minimizing space and piping by integrating two units into one. The... AW40-N04DH-RZ-A