... every area of manufacturing, suitable for: Pneumatic Systems, Air Compressors, Hydraulic System, Air Fliters Application:Used in almost every area of ... manufacturing, especailly suitable for:Pneumatic Systems, Air Compressors, Hydraulic System, Air Fliters, etc.Air service is the most common ... size 1/4", 3/8" & 1/2" are available, too. Industrial Pressure Gauge LM - Lower Mount, General Dry Gauge