Designed as a compact toilet, the Niagara Conservation Nano maintains the comfort of an elongated bowl, perfect for multifamily housing where multiple bathroom sizes often build for less comfortable round toilets. The Nano includes Niagara's patented and highly innovative Stealth Technology which guarantees a powerful, clean flush every time. Dual flush technology also allows users to select either 0.5 or 0.8 gallons per flush (GPF), making the Nano Niagara's most efficient toilet to date.