ZENY 3,5CFM Single-Stage 5 Pa Rotary Vane Economy Vacuum Pump 3 CFM 1/4HP Air Conditioner Refrigerant HVAC Air tool R410a 1/4 Flare Inlet Port, Blue Inlet Port: 1/4" Flare, Warm note: 1)Pressure Scale:0~400psi, 0~140psi 2)Length of hose:1.2m Red:1/4''-1/4'' Yellow:1/4''-1/4'' Blue:1/4''-1/4'' Please make sure your manifold gauge is in accordance with this size. Any question in using, please contact seller first. *** A self-paying vacuum pump Adapter needed if inflet not suitable. High Efficiency and Low Noise, Heavy-duty Aluminum Alloy Casing, Oil Drain Plug Positioned at Bottom of Oil Reservoir,Internal High Volume Cooling Fan for Extended U Exhaust Port with Exhaust Cap, Direct Drive Motor Allowing Easy Starting Which is Maintenance Free Oil Sight Glass For Monitoring Oil Levels, ON/OFF Switch Non Slip Cushion Handle, Comes With a Bottle of Vacuum Oil