American Standard 3174.002-007A Champion Flush Valve Box

Meet the Champion undisputed leader in high performance toilets. With the industries widest 2-3/8 in. trap-way and 4 in. flush valve, it created a plunger free world for homeowners and virtually eliminated clogged toilet call backs for plumbers. The Champion will move a mass 70% larger than the industry standard. It achieves the highest bulk removal rating of 1,000 g and will even flush a bucket of golf balls. Which means you can flush with confidence and never worry about plunging a toilet again.