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!Elongated Right Height siphon action jetted bowlTraditional styled tank lid, trip lever, and bolt capsEverClean® SurfaceLow-consumption (6.0 Lpf/1.6 gpf)4" piston action Accelerator™ flush valve12" (305mm) rough-in2-3/8" fully-glazed trapwayRim height at 16-1/2" (419mm)2 matching styled bolt capsIncludes color-matched and design-matched slow-close wood toilet seat and cover with chrome hinges and EverClean Surface.100% factory flush tested10 year warranty