Set it and forget it with the reliable Viper® 1.6 gpf toilet. The tall, narrow designed Viper® tank optimizes flush speed, and quickly refills using a trusted, industry best, Fluidmaster 400A fill valve. Powerful front rim jets maintain a clean and sanitary bowl with every flush. An exclusive multi-point mounting system and non-corrosive brass tank-to-bowl bolts ensure long lasting stability and ease of installation, making Viper® the professional's choice.