Most are single-flush models, though the top-rated Glacier Bay model is a dual-flush toilet, meaning you can use minimal water for most flushes. All of the models below are WaterSense certified by ...

only the $100 Glacier Bay N2316 did well enough to make our Recommended list. And even in their liquid-waste setting, dual-flush toilets save little water over a capable, single-flush toilet—and ...