Manifold Gauge, Number of Valves 4, R-22, R-404A, R-410A, Number of Hoses 4, 60 in, 0 to 800 psi, 30 in Hg to 500 psi, +/-3-2-3 Percent, 3/8 in, Aluminum, Free Floating O-Ring Sealing System for Faster Evacuation/Charging, Soft Grip Rubber Hand Wheels...