Gerber Ultra Flush 21-312

The two-piece Gerber Ultra Flush 21-312 toilet earns accolades from reviewers, who say it removes the most solid waste in a single flush. This pressure-assisted toilet uses compressed air inside the tank, which creates a turbo-charged flushing action. The Gerber also has a large water surface, which helps keep it clean and prevents stains, and though it's powerful, testers say it's quiet as well. However, bear in mind that pressure-assist toilets require home water pressure of at least 25 pounds per square inch (psi); if your home has lower water pressure, you might want to consider a gravity toilet, such as the less expensive and highly rated Toto Drake CST744S (*Est. $255).

The Gerber Ultra Flush 21-312 toilet is included in a ConsumerReports.org's roundup; this toilet is also discussed in the Maximum Performance (MaP) Testing of Popular Toilet Models 15th Edition.