Toilet Flapper
A toilet flapper is the rubber valve in a toilet tank that seals the flush hole to prevent water leakage and opens during flushing.
Estimated value as of 2026 · Source: Average from Walmart, Home Depot, Lowe's listings ($6.98-$17.60, typical $8-$12)
Fun Fact
Universal 2-inch flappers are the most common size for standard toilets and can fit most models from the 1980s onward, often costing under $10.
Price History
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