Manifold Gauge, Number of Valves 2, R-407C, R-422D, R-438A, Number of Hoses 3, 60 in, 0 to 500 psi, 30 in Hg to 350 psi, +/-3-2-3 Percent, 1/4 in, Brass, Free Floating Dual O-Ring Sealing System for Faster Evacuation/Charging, Color Coded Refrigerant...