MASTERCOOL (91334-A R12/R134a Charging Hose Replacement Parts Assortment R134a/R12 charging hose repair kit 50 piece assortment of replacement gaskets, O-rings, depressors for charging hoses and adapters Includes valve core removal tool Includes replacement valve cores 55 piece assortment of replacement gaskets, O-rings, depressors for charging hoses and adapters 134A/R-12 Charging Hose Repair Kit