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The 5403 - Universal Adjustable 3" Flapper is available online, from our following retail partners.

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5403 - Universal Adjustable 3" Flapper

Name: Fix Running Toilet | Fix Toilet Flapper Valve | 5403 Universal Adjustable 3 inch Toilet Flapper | Fluidmaster
Uploaded: 2016-12-09
Duration: 1 min 40 s
Description: Quickly solve common leak and running toilet problems with Fluidmaster®’s 5403 3” Water-Saving Adjustable Flapper. Made for newer 3” flush valve toilets, this model is a fast and simple install. The adjustable flapper arms, and universal design ensure it will quickly fit most 3” flush valve toilets.

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Quickly solve common leak and running toilet problems with Fluidmaster®’s 5403 3” Water-Saving Adjustable Flapper. Made for newer 3” flush valve toilets, this model is a fast and simple install. The adjustable flapper arms, and universal design ensure it will quickly fit most 3” flush valve toilets.

Stop a running toilet and optimize your flush with the 5403 Water-Saving Flapper
Universal – Fits most 3” flush valves
Fits American Standard®, Kohler® Cimmaron, Toto® and other toilets
Easy to install
Adjustable dial for flush performance and water savings
Long lasting silicone seal
Chlorine and hard water resistant**
Solid frame for the best seal- no twisting
10 year warranty

Home Improvement Expert, Bob Vila, independently rates the 5403 flapper as the best overall 3-inch flapper for running toilets. Click here to see Bob Vila’s top picks for flappers: Bob Vila’s Best Flapper Replacements

Sensible Digs, a website dedicated to helping homeowners, picked the 5403 flapper as the “most durable toilet flapper” of 2021.

Best for newer toilets, 1.28 & 1.6 GPF (after 1994). Customize your flush and save water with the adjustable dial, simply turn to adjust for more or less depending on your needs. This long lasting flapper also features a durable silicone seal that lasts up to 10x longer than standard designs. Eliminate leaks and save water with quality you can trust, the Fluidmaster® 5403 Universal Adjustable 3” Toilet Flapper.

You could also choose to install Fluidmaster’s 513A flapper which is our newest 3 inch Water-Saving Adjustable Flapper. The 513A flapper has added features or the frame assembly adapters that will allow you to connect to both the Mansfield and Cato toilets besides all other brands of toilets.

** DO NOT USE IN-TANK DROP-IN TOILET BOWL CLEANERS CONTAINING BLEACH OR CHLORINE. USE OF SUCH PRODUCTS WILL RESULT IN DAMAGE TO TANK COMPONENTS AND MAY CAUSE FLOODING AND PROPERTY DAMAGE. USE OF SUCH PRODUCTS WILL VOID THIS WARRANTY. Instead, we recommend using Flush ‘n Sparkle® automatic toilet bowl cleaner.

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