The H2Optimum Toilet Tank from American Standard provides powerful flushing action when paired with coordinating H2Optimum bowl, sold separately. Featuring a large flush valve, this toilet tank uses just 1.1 gallons per flush to conserve water without sacrificing performance. The H2Optimum toilet tank is made of vitreous china for lasting durability.

• Compatibility: Pair with H2Optimum bowl, sold separately
• Antimicrobial surface: EverClean(R) protects against mold, mildew, odor- and stain-causing bacteria
• Conserves water: Uses 1.1 gpf/4.2 Lpf and is WaterSense certified for high efficiency
• Includes: Chrome-finished trip lever and coupling components
• Buy with confidence: Limited lifetime warranty on ceramics