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American Standard H2Optimum 12 Rough-in Toilet Tank 4133A114.020$82.55
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.