Home Depot has the MJSI HYR270 HydroRight Drop-in Dual Flush Converter for $18 with free in-store pickup. Shipping is $7; free with $49+ order. Converts your toilet into a water-saving two-button version with a quick flush for liquids and paper. Approximate savings of 15,000 gallons per year for a family of four. Easy installation, but will not fit all toilets, read product description for details.
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