福馬Fluidmaster 555c flapper 通用型翻盖器擋板紅色青蛙

2" UNIVERSAL FLUSH VALVE REPAIR KIT WITH FLAPPER The 555C is a flapper and drain repair kit. The kit allows you to repair a damaged flush valve “drain seat” so that your new flapper can make a water tight seal. The advantage of this kit is that it allows you to repair a damaged flush valve without removing the tank and stop the water loss through the drain and flapper.