Prevents costly damage to air tools caused by rust, scale and moisture. Convenient minimum installation time into your compressed air system. Provides clean, dry, regulated compressed air over a wide range of airflows with accurate control and fast response. Efficiently traps moisture while passing through clean, dry compressed air. Gauge has rugged polycarbonate case with 2" face 1/4" or 3/8" NPT with Max. 135 PSI. 9-2/5" x 2-2/5"; 3 lbs.