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Briggs 351461 Tank To Bowl. This special tank to bowl gasket is for 2" flush valves. From outside ear, to outside ear it will measure about 5 13/16". Also Tank to bowl gaskets will squish overtime. Your old gasket may be larger. Or smaller depending on how long it has been used. This also replaces the 5143 tank to bowl kit. Other part numbers for this part are B351461, 351461, 5143.

This tank to bowl gasket comes as is. Therefore there are no bolts or nuts that come with this gasket. It does use two bolts. They go through the holes in the arms on the side of the gasket. This gasket is smooth. However yours may have a hex pattern. Therefore that is due to the nut on the flush valve. The wings on the side are or the bolts.

The Briggs 351461 Tank To Bowl is a beveled gasket. Therefore one side of the gasket is different. Also smaller in diameter. This is a 2 inch tank to bowl gasket. However the gasket gets smooshed to create a seal. Therefore it prevents water leaking around the bowl. It fits many toilet. However only the models with the two bolt tank to bowl.

2 inch gasket

Two bolt
Soft material
Prevents leaks

Briggs Tank Model Number 4450 Replacement Parts

Briggs 351461 Tank To Bowl Gasket

Briggs B321603 Parts Bag

Briggs 5173 Flapper

Briggs 653302 Flush Valve

Briggs B358101 White Lever For Altima Max

Briggs B358102 Biscuit Lever For Altima Max

Briggs B358103 Bone Lever For Altima Max

Briggs Bone Bolt Caps

Briggs White Bolt Caps

Briggs 1200-106 Bone Toilet Seat

Briggs Biscuit Bolt Caps

Briggs White Toilet Seat 1200-130