Nip your HVAC problems in the bud with this manifold gauge set from Orion Motor Tech. Regardless of the job—measuring pressure, recharging refrigerant, or evacuating your car’s AC system—this R134a gauge kit will get it done! This professional automotive HVAC tool kit includes a 3-way gauge, 3 color-coded hoses, and helpful accessories for hassle-free setup and easy operation whether at home or in your shop. Our reinforced hybrid gauges combine the best features of dry and liquid-filled designs to offer durable cold and shock-resistant service. Their calibration screws and moisture indicator provide accurate readings and quick monitoring of your coolant’s condition. <br>The 3 provided hoses are color coded to easy use. Each 5 foot hose has a reinforced 4-layer design and is capable of handling usual pressures up to 600 psi (burst pressure: 3000 psi). This car AC gauge set works with R134a, R12, R22, and R502 coolants. Built-in barriers ensure the purity of your refrigerant by condensation and other moisture as you work. With 2 adjustable quick couplers, and both puncture-style and self-sealing can taps, you can recharge your system without worry. This automotive AC gauge set is made from premium brass and aluminum for long lasting strength and corrosion resistance.