Best two-piece toilets with arc bowl
Researched by Deal.ai's shopping agent across stores on November 10, 2026. Prices below are today's.
Top pick: Kohler Highline Arc "The Complete Solution", two-piece elongated, 1.28 gpf. It's the full Highline Arc package — bowl, tank and seat matched — so nothing else to buy, and the 1.28 gpf flush is WaterSense-efficient while still a strong siphon-jet flush. Elongated bowl, standard 12" rough-in.
Who the others suit:
- Highline Arc Extra-Tall (78305-0): the one to choose if you want a taller, easier-to-rise-from seat, or a higher bowl for a small bathroom.
- Highline Arc with seat, Comfort Height: same arc styling in a simpler single-flush build, if you'd rather keep it basic.
- Kohler Highline (concealed trapway) and Highline Classic: cleaner skirted look and pressure-assisted flushing if clogging is your worry; Classic is the fussier, more traditional shape.
I left out a few listings that look like parts or mislabeled rather than the complete toilet, plus non-Kohler models.
The picks
- #1
KOHLER K-31096-0 Highline Arc The Complete Solution Two-Piece Elongated Toilet, 1.28 Gpf
- Item Width (Interior): 12 in
- Shape: Elongated
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