American Standard Champion 4 Toilet vs American Standard Cadet PRO Two-Piece Toilet: Which Should You Buy?

Both toilets share the same MaP score of 1000g, which means they can both flush a maximum test load of 1000 grams of waste. The MaP score is a standardized measurement of flush performance, with higher grams indicating better waste removal. In this case, both models achieve the top score, so on paper they are equally capable of handling large loads. However, real-world performance differs due to design. The Champion 4 uses a piston action accelerator flush, which creates a high-pressure burst of water to clear the bowl. Combined with its 2-3/8-inch trapway, it is far less likely to clog with bulky waste. The Cadet PRO relies on a gravity-fed siphon flush, which is quieter but less forceful. While it can pass the MaP test, users report occasional clogs with dense waste. For raw power, the Champion 4 is the clear winner despite identical MaP scores.

The Cadet PRO is the more water-efficient choice. It uses 1.28 gallons per flush (GPF) and is WaterSense certified, meaning it meets EPA standards for water savings. Over a year, this can save thousands of gallons compared to older toilets. The Champion 4 uses 1.6 GPF and is not WaterSense certified. While the difference of 0.32 gallons per flush may seem small, it adds up in a busy household. For example, with 10 flushes per day, the Cadet PRO saves about 1,168 gallons per year. The Cadet PRO also features an EverClean surface that reduces cleaning frequency, which can save water used for scrubbing. If water conservation is a priority, the Cadet PRO is the better option. However, the Champion 4's higher water volume contributes to its superior clog resistance, so the trade-off is between efficiency and power.

For heavy waste and large families, the American Standard Champion 4 is the superior choice. Its 2-3/8-inch fully glazed trapway is the largest in its class, allowing waste to pass through without getting stuck. The piston action accelerator flush delivers a powerful, pressurized flush that clears the bowl completely in one go. Owners of the Champion 4 consistently report that it rarely, if ever, clogs, even with high-volume use. In contrast, the Cadet PRO's 2.625-inch trapway is standard size and more prone to blockages with large waste. While the Cadet PRO has a 1000g MaP score, its gravity siphon flush can struggle with multiple flushes in quick succession or with dense solids. For a family of four or more, or for anyone dealing with heavy waste, the Champion 4's design is purpose-built to handle the load without issues.