Features Details Heavy Duty Vacuum Pump: FAD: 4.8 CFM, Single Stage; Power: 1/3 HP; Ultimate Vacuum: 5PA. Our HVAC vacuum pump comprises heavy-duty aluminum alloy with durability and sturdiness. The strong copper motor provides continuous power, and a shock-proof base supports the stable operation. Precise Manifold Gauges: The refrigeration kit has manifold gauges. The dual-pressure gauges are high quality, allowing you to know the actual working pressures anytime to facilitate easy maintenance systems. Besides, the oversized sight-glass is designed for easy viewing of the refrigerant flow. Multifunctional Hoses: The four hoses are made of premium rubber with different colors. Their brass fittings are 45 degrees on one hand and straight on the other, providing a leak-proof seal. Characterized by high working pressure and various connection sizes, the hoses can satisfy your different requirements. Easy Monitoring Cooling: With an oil viewing window, this AC vacuum pump can easily monitor oil levels to avoid oil deficiency. Our vacuum pump tool can cool itself and prevent itself from burning out. The built-in thermal protection prevents the machine from burning and extends the machine's life. Wide Application: The vacuum pump is widely used for commercial and household applications, suitable for cleaning a household air conditioner, automobile maintenance, vacuum packaging, refrigerator vacuum, industry, etc.