Model # 242

Internet #100580550

Store SKU #147982

Fluidmaster Replacement Seal for Model #400A Fill Valves
0039961000064

Fluidmaster

Replacement Seal for Model #400A Fill Valves

$2.75 /each

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Product Overview

The Fluidmaster Replacement Seal for Model #400A Fill Valves is a great way to repair a Fluidmaster 400A fill valve without needing to purchase a new fill valve. The seal can also be used with the Home Depot-exclusive Whisper series of fill valves.

  • Durable rubber construction
  • Replaces the seal on Fluidmaster model #400A fill valves without needing to replace the entire fill valve
  • Fits The Home Depot-exclusive Whisper series of fill valves
  • Extends the life of the fill valve
  • Easy to repair

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Customer Questions & Answers

4 Questions7 Answers

Customer Questions & Answers

Replacement Seal for Model #400A Fill Valves
Replacement Seal for Model #400A Fill Valves

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2 answers

Will this seal work for a fluidmaster 300? I don't seem to be able to find any information on this series?

This question is from Replacement Seal for Model #400A Fill Valves
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October 4, 2016
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October 4, 2016
Answer: 
No, this product works with Fluidmaster model #400A only.
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October 4, 2016
Answer: 
Dear valued customer thank you for your question concerning our Replacement Seal for Model #400A FIll Valves. That seal is universal to all of our fill valves. It may not say it works for the 300 valve but it will work just fine with it. At Fluidmaster, we are committed to providing our customers with an exceptional experience with our products and our service. We want to learn more about your experience Read More
Dear valued customer thank you for your question concerning our Replacement Seal for Model #400A FIll Valves. That seal is universal to all of our fill valves. It may not say it works for the 300 valve but it will work just fine with it. At Fluidmaster, we are committed to providing our customers with an exceptional experience with our products and our service. We want to learn more about your experience and offer support. Please contact us at your earliest convenience and we’ll do everything we can to resolve your issue. Fluidmaster’s Technical Service Department is available Monday through Friday from 5:30 AM through 5:00 PM Pacific Standard Time. Contact options include: Chat www.fluidmaster.com/support E-Mail techsupport@fluidmaster.com and Toll Free 800-631-2011. Read Less
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2 answers

Toilet fill valve seal

This question is from Replacement Seal for Model #400A Fill Valves
Asked by
Sterling Hts. Mi
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August 30, 2015
My toilet fill valve seal is not under the cap of my Fluidmaster 400A TOILET FILL VALVE. Can I change the toilet fill valve seal with this model ?
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Asked by
Colorado
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May 20, 2016
Answer: 
after you remve the cap, you must also remove the plastic retainer. It has two tabs that you must pry up slightly, then turn the retainer CCW. The seal is under the retainer.
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September 1, 2015
Answer: 
Hi Pabloss – Thank you for your question on the Replacement Seal for Model #400A Fill Valves. This product is the genuine replacement seal for all Fluidmaster 400 series fill valves. For instructions you can download yourself please visit our website or contact the Technical Service Team at Fluidmaster for any additional help you may need in installing your product. Fluidmaster Technical Service Read More
Hi Pabloss – Thank you for your question on the Replacement Seal for Model #400A Fill Valves. This product is the genuine replacement seal for all Fluidmaster 400 series fill valves. For instructions you can download yourself please visit our website or contact the Technical Service Team at Fluidmaster for any additional help you may need in installing your product. Fluidmaster Technical Service Department can be contacted Monday through Friday from 5:30 AM to 5:00 PM Pacific Standard Time. Please contact us by using any of these options: Chat www.fluidmaster.com/support E-mail techsupport@fluidmawster.com or Toll Free 800-631-2011. Read Less
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2 answers

will this seal fit

This question is from Replacement Seal for Model #400A Fill Valves
Asked by
mentor,ohio
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November 8, 2014
will the fluid master 400a fit a Mansfield 208 flush valve
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Asked by
Ohio
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December 5, 2014
Answer: 
Yes, this fits the fluidmaster 400A, the mansfield isn't a flush valve it's the tower or flapper like thing. I had a friend who had a $700 Kohler toilet that kept running, he didn't know the fill valve was a fluidmaster(it looked completely different then the 400a model) but when I took it apart it was the same washer inside. I have a feeling this is used in the entire line of products.
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November 10, 2014
Answer: 
Thank you for your question, the Fluidmaster Replacement Seal for model 400A Fill Valves will fit the Fluidmaster 400A, 400C, 400LSR and all the othert models of 400 series valvelave that Fluidmaster manufacturers. If you would like more information on Fluidmaster products please contact the Technical Service Team.at Fluidmaster. Our hours of operation are from 5:30 AM to 5:00 PM Pacific Standard Time. Read More
Thank you for your question, the Fluidmaster Replacement Seal for model 400A Fill Valves will fit the Fluidmaster 400A, 400C, 400LSR and all the othert models of 400 series valvelave that Fluidmaster manufacturers. If you would like more information on Fluidmaster products please contact the Technical Service Team.at Fluidmaster. Our hours of operation are from 5:30 AM to 5:00 PM Pacific Standard Time. Our toll free number is 800-631-2011 or if you prefer you may e-mail us at Read Less
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1 answer

will this fit the fluid master 703A5B flapper?

This question is from Replacement Seal for Model #400A Fill Valves
Asked by
Cleveland, ohio
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October 24, 2015
fluidmaster 703A5B
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Answer (1)

October 26, 2015
Answer: 
Hi ann - Thank you for your question concerning the Replacement Seal for Model 400A Fill Valves. Replacement Seal for Model 400A Fill Valves is the proper replacement seal for the 703A5B and 703AP4. For additional information about the Replacement Seal for Model 400A Fill Valves or any Fluidmaster product please contact Fluidmaster's Technical Service Department. Fluidmaster's Technical Service is Read More
Hi ann - Thank you for your question concerning the Replacement Seal for Model 400A Fill Valves. Replacement Seal for Model 400A Fill Valves is the proper replacement seal for the 703A5B and 703AP4. For additional information about the Replacement Seal for Model 400A Fill Valves or any Fluidmaster product please contact Fluidmaster's Technical Service Department. Fluidmaster's Technical Service is available Monday through Friday from 5:30 AM through 5:00 PM Pacific Standard Time. Contact options: Chat www.fluidmaster.com/support E-Mail techsupport@fluidmaster.com and Phone 800-631-2011. Read Less
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Customer Reviews

Replacement Seal for Model #400A Fill Valves is rated 4.5 out of 5 by 18.
Rated 1 out of 5 by from No It Does Not Work 7-24-2016 the fill valve of guest toilet is leaking and unfortunately I have to replace the seal and all I can say it does not work at all. Tried it again and still leaks. So I check and re-check how the seal works and seems like the plunger that pushes the seal down is going thru the seal. Look at my old one and looks the same. Off to Home Depot and luckily there are 2 blister pack that was open and further investigation the seals look like the one I bought and my old. They all have the same"discrepancy" the hole for the plunger is thru. So I decided to change the fill valve. I noticed that there are at least 4 boxes of fill valve that were open and all have the same "discrepancies" the plunger for the seal is thru. I decided not to buy the Fluidmaster Universal toilet fill valve and bought Korky QuietFill Platinum Fill Valve instead, and it's been a week and still no problem yet.
Date published: 2016-07-31
Rated 5 out of 5 by from Easily fixed a squeaky toilet with an old style Fluidmaster 400A Fill Valve (with the metal fill ... Easily fixed a squeaky toilet with an old style Fluidmaster 400A Fill Valve (with the metal fill height adjuster, now called Model 350). Much easier than replacing the entire fill valve, and the caps for this style seem to no longer be available. If you have a toilet that squeaks when it fills, try this first. I didn't think it would work, but it absolutely did.
Date published: 2016-11-05
Rated 5 out of 5 by from Easy 30-second Fix If you're having issues with your tank refilling after flushing then this is probably the part you need. Both of my fill valves went bad about a month apart, roughly 2-3 years after I installed each of them. It's a shame the part wears out so quickly, but at least it's a cheap and easy repair.
Date published: 2013-05-23
Rated 5 out of 5 by from This Is The Genuine Replacement Part ... I Reccomend Having This Piece At Home For A Spare ... When The Seal Goes Bad , It Only Takes A Minute To Repair The Fill Valve ...
Date published: 2011-12-06
Rated 5 out of 5 by from You need this! If you already have one of the 400 series valves installed you want a few of these on hand. It seems like every three years or so the valves start leaking from use and chlorine in the city water. In the past, I would go get a whole new valve for $12-14 and spend a half hour or so laying under the toilet replacing everything then dealing with the obligatory spot leaks. This seal is normally the culprit and can be replaced in just a minute with no tools and its right at the top of the tank. I keep a full 400 kit on hand with the flapper [the other part that gets hard from the chlorine] but most of the time its this seal. Pop a new one in and DONE! Then I pick up another spare on my next run to the store for next time.
Date published: 2014-03-04
Rated 5 out of 5 by from Easy fix This is an easy fix for Fluidmaster not functioning properly.
Date published: 2011-09-06
Rated 5 out of 5 by from Very easy to install My toilet was very slow to fill, so I watched a youtube video to get an idea of what might be wrong. I followed the instructions on how to remove the top of the Flushmaster fill valve and checked the seal. Sure enough, it had a hole in it. The installation of the replacement seal was a breeze, and the toilet is back to normal. I can't rate quality or value, yet, because I just replaced the seal 15 minutes ago. So far, so good!
Date published: 2015-06-06
Rated 5 out of 5 by from A good easy fix. This is a simple part that can save you time and money. Instead of draining the toilet tank and removing the water feed line you need only to change the Replacement Seal on top of the water valve. I must admit that the procedure requires some understanding of toilet water fill valves.
Date published: 2016-04-19
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