Kohler Highline
Best for everyday value
4.7
A reliable single-flush workhorse with a tall comfort-height bowl and strong, consistent rinse based on owner reports.
1.28 GPF Check price on AmazonPowerful, clog-free, water-smart toilets compared side by side. We rank by MaP flush-test scores, certifications and aggregated owner reports so you can decide in minutes.
For most homes the Kohler Highline wins on a near perfect MaP flush score, an efficient single flush and a deep base of strong owner reviews. Want serious clog-busting power instead. The TOTO Drake and its pressure-assist flush is the one to compare against it.
| Toilet | Best For | MaP Score | GPF | Rating | Check Price |
|---|---|---|---|---|---|
|
Kohler Highline
Best Overall |
Most homes | 1000 g | 1.28 |
4.8
Top pick
|
Check price |
|
TOTO Drake
Best Pressure-Assist |
Clog-busting power | 1000 g | 1.28 | 4.7 | Check price |
|
American Standard Champion 4
Best Clog-Free |
Never clogging | 1000 g | 1.6 | 4.6 | Check price |
|
TOTO UltraMax II
Best Comfort-Height |
Easy seating | 800 g | 1.28 | 4.8 | Check price |
|
Swiss Madison St. Tropez
Best Dual-Flush |
Water saving | 600 g | 0.8 / 1.28 | 4.5 | Check price |
We compare published specs, MaP flush-test scores, certifications and aggregated owner reviews. We do not physically test units in a lab. Our goal is to surface the data that actually predicts a strong, clean, reliable flush, then present it clearly.
Five standout toilets chosen for flush power, clog resistance, water efficiency and real-world owner satisfaction.
A reliable single-flush workhorse with a tall comfort-height bowl and strong, consistent rinse based on owner reports.
1.28 GPF Check price on AmazonA long-running favorite. Its G-Max siphon jet posts top MaP scores and clears heavy loads with very few reported clogs.
MaP 1000g Check price on AmazonFamous for its huge trapway and wide flush valve. Owners report it rarely clogs even with larger loads.
1.6 GPF Check price on AmazonA sleek one-piece with universal comfort height and the quiet, efficient Double Cyclone flush. Easy to clean, easy on the back.
1.28 GPF Check price on AmazonA modern skirted one-piece with a dual-flush button so you choose a light or full flush. Saves water with a contemporary look.
0.8 / 1.28 GPF Check price on AmazonJump straight to the flush style that fits your bathroom and your priorities.
A strong flush combines bowl design, a wide glazed trapway and an efficient flush valve. A high MaP score signals it can clear more waste in a single flush with less water.
MaP (Maximum Performance) is an independent flush test measured in grams of waste cleared in one flush. Higher is better. Scores of 800 to 1000 grams indicate a very strong flush.
For many homes, yes. A dual-flush lets you use a lighter flush for liquid waste, which can meaningfully lower water use over a year while keeping full power available when needed.