Ritchie Yellow Jacket test and charging manifolds are designed to monitor cooling or heating systems, particularly the pressure of refrigerants. They are used to manage the flow or pressure of a gas. These Ritchie Yellow Jacket test and charging manifolds come with the fourth hose, allowing connection to the refrigerant tank, high / low sides and recovery unit or vacuum pump for clearance, diagnostics and charging without switching hoses. They feature a dedicated 100 mesh filter in-line on all flare fittings to prevent particulate material and improve seat life. These test and charging manifolds have a sight glass that allows users to efficiently view refrigerant movement & condition during the recovery and charging operation. Ritchie Yellow Jacket test and charging manifolds have double "O" ring pistons, offering dependability and extended service life. Choose from a range of these Ritchie Yellow Jacket test and charging manifolds available in 60 and 72-inch hose lengths.