Toilets with gallons per flush of 1.28 & width of 15.75
| Compare | Title | Color(s) | Bowl Shape | Width | Configuration | Gallons Per Flush | Bowl Height |
| Add to compare |  Kohler K-3998-U |
Almond, Biscuit, Black, Dune, Ice Grey, Sandbar, White | Elongated | 18 | Two Piece | 1.28 | 14.5 |
| Add to compare |  Kohler K-3998-RZ |
Almond, Biscuit, Black, Ice Grey, Sandbar, White | Elongated | 18 | Two Piece | 1.28 | 14.5 |
| Add to compare |  Kohler K-3998-RA |
Almond, Biscuit, Black, Dune, Ice Grey, Sandbar, White | Elongated | 18 | Two Piece | 1.28 | 14.5 |
| Add to compare |  Kohler K-3997-UR |
Almond, Biscuit, Black, Dune, Sandbar, White | Round | 18 | Two Piece | 1.28 | 14.5 |
| Add to compare |  Kohler K-3889-UT |
Almond, Biscuit, Black, Dune, Ice Grey, Sandbar, White | Elongated | 18 | Two Piece | 1.28 | 16.5 |
| Add to compare |  Kohler K-3889-UR |
Almond, Biscuit, Black, Dune, Ice Grey, Sandbar, White | Elongated | 18 | Two Piece | 1.28 | 16.5 |
| Add to compare |  Kohler K-3889-U |
Almond, Biscuit, Black, Dune, Ice Grey, Sandbar, White | Elongated | 18 | Two Piece | 1.28 | 16.5 |
| Add to compare |  Kohler K-3889-TR |
Almond, Biscuit, Black, Dune, Ice Grey, Sandbar, White | Elongated | 18 | Two Piece | 1.28 | 16.5 |
| Add to compare |  Kohler K-3889-T |
Almond, Biscuit, Black, Dune, Ice Grey, Sandbar, White | Elongated | 18 | Two Piece | 1.28 | 16.5 |
| Add to compare |  Kohler K-3887-UR |
Almond, Biscuit, Black Black, Dune, Ice Grey, Sandbar, White | Round | 17.63 | Two Piece | 1.28 | 16.5 |