XtremepowerUS 3CFM or 4CFM Air Vacuum Pump HVAC A/C Refrigeration Kit AC Manifold Gauge Set (3CFM 1/4HP Air Vacuum Pump) SIMPLE BUT POWERFUL: XtremepowerUS 1/4 HP 3 CFM 1-Stage Rotary Air Vacuum Pump is designed to have high efficiency and low noise output with internal high volume cooling fan for extended use. HEAVY DUTY CASING: Die-cast Aluminum Alloy Casing enables the vacuum pump be light and durable at the same time. Equipped with brass fitting tethered safety caps to prevent oil leaks during transportation and handling. EASY OIL CHANGE: The vacuum pump features a simple Oil Fill Port for a clean pour and Oil Drain Plug positioned beneath the oil reservoir to quickly drain when needed. Checking the spillage meter will help to ensure the proper level of oil. INCLUDED: Multicolored set of three 36 hoses, Manifold Gauge, Oil Bottle, Accessories and Storage Bag to keep equipment clean and dust free. The XtremepowerUS HVAC service gauge set is great for diagnosing and repairing AC systems. Ideal use for R134, R134A, R12, R22, R22A, R404A, R407C or R502; also commonly used for wine degassing and automatic milking.