The Vevor AC vacuum pump and manifold gauge set is designed for HVAC and automotive air conditioning service with reliable single-stage rotary vane performance. It delivers 3.5 CFM free air displacement, 40 microns ultimate vacuum, and includes a manifold gauge set with durable three-color hoses. The kit is compatible with R134a and R1234yf applications and is built for accurate pressure measurement and efficient refrigerant work. User-friendly details like the ergonomic handle, sight glass, oil level scale, and heat-dissipating design help make operation and maintenance easier.