The VIVOHOME Automotive A/C Manifold Gauge Set is a complete diagnostic tool designed for vehicle air conditioning repair, compatible with both A1 and A2L refrigerants including R404a, R1234yf and R134a; This manifold set is engineered for durability and precision with a full suite of components and user-friendly features. The set includes four 5 ft. PVC hoses with four reinforcement layers and clear red, blue, yellow, and black color-coding to easily identify high-pressure, low-pressure, charging, and evacuation hoses. Comes with a sturdy hanging hook for hands-free operation and a convenient carrying case for organized storage and easy transport.