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The Genuine Briggs B351304 Flapper comes complete. It has the chain and hook, Which connect to the lever. However there is also a float on this flapper. It is foam. Therefore it will float and keep the chain and hook from pulling down on the lever. The flapper itself is rubber. Therefore it can make a seal against the flush valve and prevent leaks,

This flapper comes complete. Therefore it is ready to install. This flapper is the replacement for many Briggs tanks. It is a navy blue rubber flapper. It also has a light blue float. The chain and hook are metal. Therefore they will not break. Also they connect to the lever. Therefore when the lever is pushed it will lift the flapper causing a flush.

In conclusion, the Genuine Briggs B351304 Flapper comes complete. Therefore the chain and hook come with the flapper. Also the float comes with it. However the float is foam. Therefore it will float above the water. The flapper itself is rubber. Which sits on the flush valve and creates a seal. The chain and hook are metal. Also they can be adjusted.

Genuine Briggs replacement part
Comes complete with the chain and hook
Comes with the flo

Briggs B351304 Flapper

Briggs 351461 Tank To Bowl Gasket

Briggs B351302 Chrome Trip Lever

Briggs B321603 Parts Bag

Briggs B351312 Vacuity Seal

Replacement Flush Valve

Briggs B321605 Parts Bag