Pressure Regulator Lrbs-D-O-Midi Without Threaded Connection Plates, For Block Mounting, Without Pressure Gauge, Lockable. Size=Midi, Series=D, Actuator Lock=Rotary Knob With Integrated Lock, Assembly Position=Any, Design Structure=(* Directly-Controlled Diaphragm Regulator, * With Looped-Through Compressed Air Supply)