3.5 CFM 1/4 HP HVAC Vacuum Pump

Easy Maintenance & Low Noise Design: Features a carry handle, simple ON/OFF switch, oil fill port, clear oil sight glass, and bottom drain valve for quick oil changes. Operates at approximately 65 dB with a built-in cooling fan and non-slip base for steady, quiet performance. Rugged Aluminum Housing & Copper Motor: Constructed with a one-piece die-cast aluminum body for durability and heat dissipation. The four-pole pure copper motor provides stable performance and long service life, suitable for repeated use in workshops or garages. Clean & Protected Operation: Built-in motor overload protection helps prevent damage during operation. A 304 stainless steel inlet filter blocks debris from entering the pump chamber, while the exhaust cotton filter captures oil mist and airborne impurities for cleaner output. Supports Multiple Refrigerants: Compatible with R134a, R12, R22, and R502 refrigerants. Can be used with R410a when paired with a 5/16" adapter (adapter not included). Standard 1/4" SAE and 1/2" Acme intake ports ensure wide system compatibility. Fast, Stable 3.5 CFM Vacuum Performance: Driven by a 1/4 HP motor at 1440 RPM, this single-stage vacuum pump delivers a consistent 3.5 CFM flow and reaches an ultimate vacuum of 5 Pa within 3 minutes, providing reliable evacuation for HVAC and automotive AC systems.