How the Toilet Flapper Fit Finder (Korky models) works

Which details affect a match?

A model matches when its details meet every choice you select. Missing or conflicting values stay unknown. If nothing fits, the finder shows the closest option and what it misses.

• What flush-valve opening does your toilet use (in)?
• Which replacement family matches your existing part?
• What minimum warranty duration do you want (years)?

Order and links

The starting order helps you browse. Your choices determine which models match. When the first match has no product link, the finder identifies another linked match separately. Commission amounts do not determine a match.

Sources and limitations

Korky's repair-part pages, checked September 26, 2026, supply all ten flappers. Fit families come from Korky's product headings, and part numbers appear only where Korky prints one. Flush seals, tank balls, multi-packs and discontinued parts aren't covered. We didn't fit any of these flappers to a toilet.

The finder shows source links and the dates they were checked. Those dates do not establish today’s price or stock. Before ordering, confirm the model and variant on the seller’s page.