The Bacoun3.6 CFM 1/4 HP HVAC Vacuum Pump Manifold Gauge Set with Hoses by bau is a powerful and versatile tool for HVAC professionals. This vacuum gauge set is designed for measuring vacuum levels with microns accuracy, making it ideal for diagnosing and repairing HVAC systems. The manifold gauge set includes hoses and fittings for working with various refrigerants such as R-1234yf, R-134a, and R-410a. With a compact design and multicolor orange finish, this vacuum pump manifold gauge set is a convenient and reliable addition to any HVAC and refrigeration tool collection.