Meet the Champion® 4, the undisputed leader in high performance toilets. With the industry’s widest 2 3/8” trapway and 4” flush valve, it virtually eliminated clogged toilets for homeowners and call backs for plumbers. The Champion 4 will move a mass 70% larger than the industry standard. It achieves the highest bulk removal rating of 1,000 grams and will even flush a bucket of golf balls! Which means you can flush with confidence! Combination bowl and tank, less seatVitreous chinaEverClean® Surface4" piston action Accelerator™ flush valve2-3/8" fully-glazed trapwaySiphon action bowlSweeping pier on bowl2 color-matched bolt capsSpeed Connect® tank/bowl coupling system100% factory flush tested10 year warrantyToilet complete less seatBlack not available for sale in California and Texas