Easy Monitoring: This vacuum pump comes equipped with an oil viewing window so that you can easily monitor oil levels and quality, prevention of oil deficiency. The manifold gauges allow you to know the actual working pressures anytime to facilitate systems' easy maintenance. Intelligent Radiator: The pump can protect itself and prevent it from burning out when something is stuck. Built-in thermal protection, avoid burning machine, extend the machine's life.
Widely Applied: This tool kit has complete accessories, including a single-stage rotary vane vacuum pump, pressure gauge, yellow, blue, and red hoses. It is widely applicable to household air conditioning, automotive units, refrigerators, refrigeration units, vacuum packaging, refrigerator vacuum, industry, etc. Bestauto Vacuum Pump 4CFM 1/4HP Air Vacuum Pump HVAC A/C Air Refrigerant Rotary Vane Vacuum Pump Single Stage 1 Valve AC Manifold Gauge Set (4CFM 1-Stage). We guarantee against any defective or misrepresented products.