The Charging Adapter Repair Kit features a 50 piece assortment of replacement gaskets, O-rings and depressors for charging hoses and adapters. It consists of, 1/4" Gasket (10 pieces), 1/4" Depressor (5 pieces), Screw type Depressor (5 pieces), Gasket for Shut-off Valve Hose (5 pieces), Black gasket for R134a hose (10 pieces), O-Ring for R134a hose (5 pieces), Black O-Ring for High-Side coupler (5 pieces) and Black O-Ring for Low-Side coupler (5 pieces).