Technical Specifications: Free Air Displacement: 4 CFM Voltage: 110v/60hz Microns Rating: 5pa Power: 1/4HP Pump Speed: 1440RPM Oil Capacity: 225mL Inlet Port: 1/4" Flare Features: Durable-Lightweight cast aluminum construction for maximum durability Easy To Oil Level Window-Oil viewing windows allows you monitor oil quality and levels Easy to maintain\nance - Oil drain plug located at bottom of oil reservoir Turn On & Go - Free and Easy Start and maintence Efficient cooling- built in high volume cooling fan for extended use Easy to operate- ON/OFF switch Portabity-Non-slip contoured carrying handle Safe- Exhaust port with cap Manifold Gauge details: Ideal for R134a 2-1/2"Large Gauge, easy to read gauge Aluminum alloy manifold testing body with built in sight glass High or Low Pressure adjustable Diaphragm valves with swivel seals for more positive seal and less wear Pressure in PSI measurement Extra large and easy to read color coded dials Heavy gauge rubber gauge cover for added support and protection High impact pop-in Lexan lens Heavy duty hook for hanging the manifold gauge in place No-flutter gauge design Solid Brass connections 60" color coded charging hose Designed to meet 1/4" Standard SAE requirement for refrigerant permutation Quick disconnect couplers for high /low fittings included Manifold Gauge Specifications: Operating Pressure: 600 PSI Burst Pressure: 3000 PSI Blue Gauge (low): 2-1/2" diameter, 0-120 PSI with 0-40 VAC Blue Hose Length: 1/4" FFL x 60" with knurled fittings Red Gauge (high): 2-1/2" diameter, 0-500 PSI Red Hose Length: 1/4" FFL x 60" with knurled fittings Yellow Hose Length: 1/4" ACME x 60" with knurled fittings Hose Connectors: 1/4" SAE Gauge Reading: R134a Hose Length: 5 Feet Compatibility: R134a only Note: There is no pump oil in the bottle.