Manifold Gauge Number of Valves 2 R-404A R-407A R-407C Number of Hoses 0 0 to 800 psi 30 in Hg to 500 psi +/-3-2-3 Percent 1/4 in Brass Free Floating Dual O-Ring Sealing System for Faster Evacuation/Charging Color Coded Refrigerant Dials for Easy Reading Pull Out Proof Hanging Hook for Convenience All Metal Gauges Plastic Hand Wheels Allow Easy Turning Replaceable Intake/Hose Fittings for Easy Repair