The duo fit-in-wall tank dual-flush system with copper supply takes up less floor space, giving your bathroom a more open feel and making it easier to clean. This modern design uses a dual-max® flushing system, allowing you to conserve water with a full or light flush option proactively. Choose between a 0.9 GPF rinse or 1.28 GPF for tougher jobs. The duofit® harness allows you to select a mounting height. This provides the opportunity for you to establish a comfortable bowl height for a wide array of individuals. The in-wall unit can support up to 880lbs when installed properly. To enhance the installation with a washlet® bidet seat, there is a pre-attached copper supply built into the system. The separately sold washlet® connection kit will complete your washlet® install. This duofit® requires the toilet bowl and push plate to be purchased separately.