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Fluidmaster
Fluidmaster K-540A-015 Toilet Flush Valve Kit
$1.00across 23 retailers
Model: K-540A-015-T5Color: MulticolorUPC: 39961031457
Lowest at Amazon
$10.22 at AmazonLowest at any Popular Retailer
$10.22 at AmazonWhere to Buy
Prices last updated: August 24th 2026 3:58 pm
Used & Refurbished
✨ See 1 used & refurbished price with ShopSavvy ProGet the app →Pros
- •Installation was straightforward and easy, suitable for both experts and beginners.
- •Comes with its own tool, making setup even simpler.
- •Operates quietly during flushing, reducing noise disturbance.
- •Effectively stopped leaks and demonstrated reliable performance initially.
- •Simplifies the repair process, making it easier for handymen to complete the job.
- •Delivered on time and overall good quality with effective performance.
Cons
- •Some users experienced ongoing leaks despite correct installation, with about half a gallon per hour.
- •Leak issues may be caused by improper tightening or placement, leading to uncertainty.
- •Chain adjustment can be tricky, requiring careful positioning to avoid hanging or malfunctions.
- •Proper placement of the plastic chain sleeve is critical to prevent the flapper from hanging up.
- •Silicone flapper quality decreased after a year, developing bubbles and causing ghost flushing issues.
- •Many users suggest sticking with traditional rubber flappers for better durability.
Bottom Line
This universal repair kit from Fluidmaster is easy to install and works well initially, especially with its user-friendly design and included tool. However, some users face persistent leaks and durability issues, particularly with silicone flappers that degrade over time. For a more reliable and long-lasting solution, consider models with rubber flappers or double-check your installation to prevent leaks.
What Reviewers Are Saying
Praised
gasket kit6%
easy to install24%
tank gasket6%
Criticized
leak worse6%
leak18%
water level adjustment12%
overflow pipe leakage6%
slanted flapper design6%
difficult seal6%
📚More About Fluidmaster K-540A-015 Toilet Flush Valve Kit
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