3CFM High-Quality Vacuum Pump: This 1/4HP single-stage vacuum pump gives you an ultimate vacuum at 5Pa. The pump has a die-cast aluminum housing which made it lightweight and durable, the composite rubber base gives you a quiet working environment and its built-in thermal protection will protect itself from burning out when something is stuck. Precise Manifold Gauges: The refrigeration kit has manifold gauges. The dual-pressure gauges are of 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 three 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