Looking to reclaim bathroom space without sacrificing functionality? The TOTO DuoFit In-Wall Dual Flush Tank System is engineered to save up to 9 inches of floor space while delivering smart water conservation and versatile usability for modern bathrooms.
Featuring TOTO’s Dual-Max® technology, this system empowers you to choose between a 0.9-gallon or 1.6-gallon flush per use with a simple button press. Whether you need a gentle rinse for light tasks or a fuller flush for heavier needs, Dual-Max makes conservation effortless—letting you adjust water usage based on what works best for your routine.
Installation flexibility shines here too: the DuoFit supports mounting heights of 15 to 19 inches. This adjustable range ensures you can set the bowl height to your ideal comfort level—whether you prefer sitting or standing use, or if you’re shorter or taller—making it accessible for all household members.
Built tough for long-term use, the in-wall tank safely holds up to 880 pounds when installed properly—so you can trust it to handle daily traffic without compromise.
What’s included? A pre-installed copper supply line and a 2” x 6” polyethylene waste outlet for seamless plumbing integration. Plus, it’s pre-plumbed with a WASHLET® bidet connection point—so adding a bidet seat later is a breeze (just pair it with TOTO’s WASHLET Connection Kit, sold separately).
To finish your setup: grab a compatible wall-hung toilet bowl (CT486FG or CT418F/G), a flush push plate, and optionally upgrade to a WASHLET seat for an extra layer of comfort.
Whether you’re renovating a compact bathroom or modernizing an existing one, the TOTO DuoFit delivers space-saving innovation, water-efficient flushing, and customizable convenience—all backed by TOTO’s trusted warranty and support.
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