- AC Manifold Gauge: This durable, anti-corrosion aluminum manifold features a three-way double movement design. The blue low-pressure gauge measures from -30 inHg to 500 PSI, while the red high-pressure gauge ranges from -30 inHg to 800 PSI. A large, easy-to-read 2-3/4" dial with a color-coded scale and sight window allows for precise monitoring of refrigerant charging. A built-in calibration screw and no-flutter pointer ensure accurate measurements, while a purge valve helps eliminate air. Compatible with R134A, R404A, and R410A refrigerants. - Three 5 FT Color Coded Hoses: The refrigerant charging kit includes robust rubber nylon resin hoses that resist corrosion and minimize fluid resistance. Each hose can withstand a maximum working pressure of 600 PSI and a burst pressure of 3000 PSI. Equipped with 1/4" female brass fittings on each side for easy connection, the red hose connects to the red gauge, the blue hose connects to the blue gauge, and the yellow hose links the middle charging port to a can tap or vacuum pump. - Adjustable AC R134A Quick Couplers: Made from premium brass and aluminum, these couplers feature an easy-connect design with a precise snap lock and anti-slip knurled grip. They are compatible with all models that have a standard R134A service port. Simply connect the blue coupler to the AC suction service port and the red coupler to the AC discharge service port. The adjustable knobs allow for easy opening and closing, minimizing wear on the Schrader valve and preventing leaks during connection and disconnection. - Adjustable Can Tap and Adapter: The adjustable can tap is designed for refrigerant cans with a neck ring diameter smaller than 1.3 inches. Its internal pin pierces the refrigerant bottle quickly and efficiently. The included customized blow molding case keeps all components organized and protects the gauges during storage. The set also features detailed instructions, an R410A adapter (Male to Female: 1/4" to 5/16"), and a hose valve repair tool kit, ensuring you have everything needed for effective refrigerant management. Ideal for automotive technicians and DIY enthusiasts, this comprehensive kit ensures reliable performance for air conditioning service and maintenance tasks.