Blackmax MV4H4P5Z Manifold Gauge Set 4 Valves, 3 Hoses, Series BlackMax, 3 1 8 in Gauge A32100 9FG Voltage Rating 600V AC 9FG Voltage Rating 600V AC Cap Type Screw On Cap Housing Material Metallic Grounding Style Style 2 Pin & Sleeve Standards` UL 1682 Housing Color Gray Switch Rated No Reverse Service No Connection Orientation Straight Hazardous Area Classification Class I 3 to 15 Foot Candles Off 1 psi Manifold Port Connection Type SAE R 410A Product Type Manifold Gauge Set Accuracy + 1% Manifold Port Connection Gender Male Low Side Display Pressure Maximum 500 psi Temperature Resolution 1 Degrees F Vacuum Port Connection Gender Female Includes Vacuum Port Vacuum Port Included Includes Gauge Boots Boots Included Vacuum Port Connection Type SAE Display Type Analog Calibration Certificate Type Not Certified Pressure Units Measured psi Hose Connection Type SAE Series BlackMax Low Side Display Pressure Minimum 30 in Hg Pressure Resolution 0