Model # 400CRP14

Internet #100393036

null Fill Valve and Flapper Repair Kit

Fill Valve and Flapper Repair Kit

  • Simple DIY house hold fix thats reliable with no leaks
  • Easy installation steps with good instructions
  • Consumers review as an excellent return on investment
$1093 /each
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Frequently Bought Together

Product Overview

With Fluidmaster's Fill Valve and Flapper Repair Kit, you can easily fix a toilet that runs excessively. Includes both the world's #1 best selling 400A anti-siphon toilet fill valve and the 501 toilet flapper. This product is the perfect combination for 3.5 GPF toilets or larger. This is the #1 solution to fix your noisy and running toilet.

  • Features the proven 400A anti-siphon toilet fill valve
  • Includes the rugged 501 toilet flapper
  • Toilet flapper is chlorine-resistant for harsh water regions
  • 5-year warranty



Product Depth (in.)
Product Height (in.)
Product Width (in.)


Adjustable Fit
Dual Flush
Hardware Included
Plumbing Part Type
Toilet Fill Valve
Valve Type

Warranty / Certifications

Manufacturer Warranty
5 year warranty

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Customer Questions & Answers

does this fit all toilets

Asked by: Anonymous
It should fit all standard (no internal power tanks like some of the original water saver tanks had) tanks.
Answered by: Garkau
Date published: 2016-02-03

does this come with the flexible tube which runs water into overflow pipe?

Asked by: David
Yes, and you will trim it to the length needed during installation.
Answered by: NoviceRepair
Date published: 2016-02-03

my toilet has a floating ball and arm that shuts off the water at the fill level. will this replace the floating ball.

Asked by: eddie
No, this one does not come with the floating ball.
Answered by: David
Date published: 2016-12-07

how do I know which part is leaking?

The toilet runs constantly and the old flapper is partially disintegrated, I guess from the chlorine. But how do I know if its the valve or the flapper that is leaking?
Asked by: handymom24
Turn off the water supply. If it is the valve, your leak will stop. If all the water drains out, it is the flapper. However, it is best, in my opinion to just replace both. Save yourself the worry and hassles. There are kits that contain both parts and are cheaper than trying one piece then the other.
Date published: 2017-06-12
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Customer Reviews

Fill Valve and Flapper Repair Kit is rated 4.5 out of 5 by 228.
Rated 3 out of 5 by from Fill valve ok The fill valve was fine and worked good but the flapper had no clips on the ends to mount it. It made it work using the old bracket. It was obviously a factory defect.
Date published: 2017-05-17
Rated 5 out of 5 by from Installed easily and working quite well. ... Installed easily and working quite well.
Date published: 2017-05-16
Rated 1 out of 5 by from 1 Star Review Rating provided by a verified purchaser
Date published: 2017-05-01
Rated 5 out of 5 by from Fill valve and flapper repair kit Bought two of these kits to replace toilet tank valve and flapper for both house toilets due to minor running water on one unit. Just follow the six easy steps and you can’t go wrong trust me. Word of advice pay close attention to the second step which is to adjust the heights of the fill valve and float cup, but other than this it’s simple to install. Takes about a good 30 minutes to complete, I decided to do a good clean up job inside the water tank since it was empty and dry. I read some complaints of packaging being tough to open the kit, well you just need to man up to open and get the job done. I recommend this product to anyone needing to repair a toilet tank slow leak or running water. Fluidmaster did a good job making the kit as a simple DIY house hold fix. Great product, easy installation steps, 5 Stars – ‘nuff said.
Date published: 2014-02-22
Rated 5 out of 5 by from Easy plumbing for dummies This product was so easy to install. I am a 60 year old female and I installed this repair kit and my toilet was operating properly within 30 minutes.
Date published: 2012-02-14
Rated 5 out of 5 by from Easier to install than I thought, works great. All that parts in one package to get the job done right without five trips to the store: nice. Easily adjusted to fit my 60 year old toilet so I'd expect it will fit anything. Detailed, easy to read, step by step instructions should allow the complete idiot to get this in right on the first try with just a few tools. Way better quality that the stuff I took out so I expect this will last pretty much forever. If your toilet runs, just buy this kit and you'll be able to make the fix. Took me about half an hour and I was being really careful.
Date published: 2012-02-07
Rated 5 out of 5 by from toilet flushes better than when new Am pleased with fill valve and flapper repair kit. Was easy to install and toilet flushes better than when new. I am 74 years old and my daughter thought I did such a good job, she said she will hire me out as a plumber.
Date published: 2013-02-12
Rated 5 out of 5 by from installation of the FluidMaster toilet in main bathroom room has began to continue to run all the time, so i went to homepot and told the salesperson what was going on with toilet.salesperson promptly recommend the fluidmaster to solve the problem. got home and read the easy to install instructions. it took about 5min to take out old system and about 5min to install the new fluidmaster. the plastic parts was easy to adjust and put in place with just an adjustable wrench.
Date published: 2013-07-24
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