The Briggs B357117 Flush Valve. This flush valve comes complete. Therefore the flapper and chain come with it. However the chain on this flapper is rubber. Along with the flapper. Also the nut and gasket come with it. Therefore it comes complete with all of the parts needed. The flush valve itself is plastic. Therefore it will not rust. The gasket that comes with this valve is rubber. 

The B357117 flush valve is a genuine part. We only offer genuine Briggs replacement parts. This valve works with the tank model numbers 4470, and 4472. Therefore this is the replacement valve for the tanks listed. The gasket is rubber. Therefore it can act as a seal. The nut that comes with this valve is plastic. However it is strong. 

The Briggs B357117 Flush Valve comes complete. It is ready to be installed. Also it is the genuine replacement for your old valve. In conclusion, the valve is complete. The flapper with the chain, Along with the nut and gasket are with this valve. We only offer genuine parts at Grigg Industries. Therefore the B357117 flush valve is genuine. 

• Genuine Briggs Replacement Part
• Complete with all parts needed
• Flapper and Chain
• Nut and Gasket