The Vevor AC vacuum pump and manifold gauge set is designed to measure pressure in refrigeration equipment and extract gas to achieve a high vacuum. Its single-stage rotary vane pump delivers 3.5 CFM free air displacement and includes a manifold gauge set with three-color hoses for HVAC and automotive refrigeration service. The unit features a durable pump body, leak-proof hose design, and a T-shaped heat sink for effective heat dissipation. A sight glass and oil level scale help simplify monitoring and maintenance. It is suitable for HVAC maintenance, automotive A/C work, and refrigerator maintenance.