Filter Regulator MS4-LFR-1/4-D7-ERM-As 12 bar Maximum Output Pressure, 40 µm Filter, with Pressure Gauge, Lockable Regulator Head, Plastic Bowl with Plastic Bowl Guard, Manual Condensate Drain, Direction of Flow: From Left to Right. Size=4, Series=MS, Actuator Lock=(* Rotary Knob with Lock, * with Accessories, Lockable), Assembly Position=Vertical +/- 5°, Grade of Filtration=40 µm, Festo