Prevents costly damage to air tools caused by rust, scale and moisture; Convenient minimum installation time into your compressed air system; 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 135psi; Air flow unit 1350L/min (approximately 47.655cfm); 9-2/5″ (L) x 2-2/5″ (W)