Flushmate Sloan Flushmate Pressure Assist Tank Vessel for FM III 503 Series Two-Piece Toilets with 1.6 GPF

Flushmate pressure-assist technology offers the only true high-performance, low consumption alternative to meet consumer expectations. This is why every leading toilet manufacturer offers a toilet with Flushmate inside. It's also why you'll find Flushmate inside low consumption toilets in virtually every market, from hotels to schools to commercial buildings and in your home.