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Toilet Flushing Performance

Better Flush. Cleaner Bowl.

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Water swirls around a toilet bowl as it flushes.

Never Compromise®

Our never-compromise attitude is seen in our cutting-edge toilet flushing technologies. We push the limits of what’s possible to give you a clean and clog-free flush every single time.

Continue reading to learn about our Revolution 360® swirl flushing technology, our AquaPiston® flush canister, and our rigorous B.O.L.D. toilet testing.

Powerful and water-efficient flushes are critical to preventing clogs.

A white KOHLER Corbelle elongated toilet with Revolution 360 swirl flush technology in a beige tiled bathroom with a tall wicker laundry hamper.

Better flush. Cleaner Bowl.

A better flush gives you a cleaner bowl, which is why we invented our best flush yet. Our Revolution 360 swirl flushing technology sends 360 degrees of water through the bowl for complete coverage. Water is propelled from our patented AquaPiston flush canister through a powerful jet to ensure optimal bowl coverage and cleanliness.

A cleaner bathroom starts with a cleaner bowl.

A white toilet with never compromise, kick your plunger to the curb written on it.

Improved flushing technology makes your plunger obsolete.

A bathroom with turquoise walls, white KOHLER Corbelle toilet, and a white wall-hung vanity.

Kick Your Plunger to the Curb

The engine in our powerful toilets is our patented AquaPiston flush canister. Our engineers felt the flappers found in traditional toilet tanks were inefficient and led to clogs, so they invented a flush canister. Water enters the canister from 360 degrees for a flush that packs a powerful punch to eliminate clogs without wasting water.

Kick your plunger to the curb.

A white toilet tank with is your toilet bold written above it.

Is your toilet KOHLER B.O.L.D?

Learn what makes Kohler toilets BOLD.

Tough Toilet Tests

Our toilets passed industry standards so proficiently our engineers developed more difficult proprietary tests. Why? Because we want to make a better toilet. B.O.L.D. stands for: Bulk-Waste Removal, Overall Cleanliness, Light-Waste Removal, and Does Not Clog. Every one of our toilets must pass these tests to earn the KOHLER name.