Pressure Regulator Combination Lrb-3/8-D-O-K3-Midi With Connecting Kit, Sub-Base And Mounting Brackets, Block With 2, 3, 4 Or 5 Pressure Regulators, Without Pressure Gauge Size=Midi, Series=D, Actuator Lock=Rotary Knob With Lock, Assembly Position=Any, Design Structure=(* Directly-Controlled Diaphragm Regulator, * With Looped-Through Compressed Air Supply)