The Vevor 6 CFM 2-stage rotary vane vacuum pump is designed for HVAC service, automotive AC maintenance, and resin degassing applications. It features a pure copper motor for efficient evacuation and supports R134a, R22, R410a, and other non-flammable refrigerants. The pump includes 1/4" SAE and 1/2" ACME intake fittings for broad system compatibility. A visible oil window and included vacuum oil help simplify operation and maintenance. Its compact design makes it suitable for both residential and commercial use.