Upgrade your toilet with the worlds first ultra-high-efficiency toilet and achieve industry-leading water savings without sacrificing performance. The Niagara Stealth 2-Piece 0.8 GPF Single Flush Round Bowl Toilet in White features Stealth， patented vacuum-assist technology from Niagara， which uses an industry-leading 0.8 GPF (3 LPF). Stealth also delivers a powerful flush that thoroughly evacuates the bowl every time， no need to double flush. The flapperless design eliminates both maintenance and costly leaks. Also， this toilet virtually eliminates all tank refill noise as the fill valve is never exposed. With water consumption that has cut the industry standard in half， this toilet has achieved a quiet， powerful and proven flush saving thousands of gallons annually with no change in consumer use or behavior.