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Water-saving fixture calculator
Gallons and dollars saved by low-flow toilets and showerheads.
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How this works
Toilet savings = (old GPF − new GPF) × flushes per person per day × people × 365. Shower savings = (old GPM − new GPM) × minutes × showers per day × people × 365.
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Related guide
Faucets, sinks & toilets guide
Select plumbing fixtures by fit, use, water efficiency, installation requirements, maintenance, and compatible connections.