Toilets with gallons per flush of 1
| Compare | Title | Color(s) | Bowl Shape | Width | Configuration | Gallons Per Flush | Bowl Height |
| Add to compare |  Kohler K-3597 |
Almond, Biscuit, Black, Dune, Ice Grey, Sandbar, Thunder Grey, White | Elongated | 19.5 | One Piece | 1 | 16.5 |
| Add to compare |  Kohler K-3597-NF |
Almond, Biscuit, Black Black, Ice Grey, Sandbar, Thunder Grey, White | Elongated | 19.5 | One Piece | 1 | 16.5 |
| Add to compare |  American Standard 2876.100 |
Black, Bone, Linen, Silver, White | Elongated | 20.5 | Two Piece | 1.1 | 15 |
| Add to compare |  Zurn Z5571 |
Chrome | Round | 20.75 | Two Piece | 1 | 15.38 |
| Add to compare |  American Standard 2467.136 |
White | Elongated | 20.5 | Two Piece | 1.1 | 16.5 |
| Add to compare |  Zurn Z5576 |
Chrome | Elongated | 20.75 | Two Piece | 1 | 15.38 |
| Add to compare |  Zurn Z5561 |
Chrome | Elongated | 20.75 | Two Piece | 1 | 17 |
| Add to compare |  Zurn Z5586 |
Chrome | Elongated | 20.75 | Two Piece | 1 | 16.75 |
| Add to compare |  American Standard 2462.100 |
Black, Bone, Linen, Silver, White | Elongated | 20.5 | Two Piece | 1.1 | 15 |
| Add to compare |  American Standard 2467.100 |
Black, Bone, Linen, White | Elongated | 20.5 | Two Piece | 1.1 | 16.5 |