Main Features: · Designed for using on automotive / family air conditioning system. · A useful tool for refrigerant testing, charging and evacuation. · Available for R134A, R12, R22 and R502 refrigerants. · Red and blue manifold gauges are easy to read with clear dials, vivid scales. · High pressure valve contributes to secure connect fittings. · Comes with a hook and three hoses, and the solid hook is helpful for hanging the gauges to save space.