A vacuum breaker repair kit contains the parts located inside the chrome plated vacuum breaker tube of a flushometer. It includes the following three components a rubber vacuum breaker, a plastic cone, and a fiber washer. A complete vacuum breaker includes the vacuum breaker repair kit, the chrome plated vacuum breaker outlet tube, and the chrome-plated vacuum breaker coupling and coupling assembly.Ideal for high back pressures associated with low-consumption fixtures,For regal closet and urinal valves,Prevents back-flow and siphoning,Repairs royal V-500-A or V-500-AA vacuum breakers