UF8310 Seat Bottom---Black---Wood Back

Repalces 6309

Fits: 2110 and 4100 Bottom for 3 Piece Seat

Fits: 340, 445, 445A, 515, 540, 545, 4110 Bottom or Back for Reversible Seat

Fits: 420, 535, 3500, 3550, 4000, 4410, 4500 Bottom for 3 Piece Seat

Fits: 420, 535, 3500, 3550, 4000, 4410, 4500 Bottom or Back for Reversible Seat