0039961000064

Fluidmaster

Model # 242

Internet # 100580550

Store SKU # 147982

Replacement Seal for Model #400A Fill Valves

$2.75 /each

Frequently Bought Together

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

Info & Guides

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Specifications

Dimensions

Inside Diameter 
.02 in 
Outside Diameter 
.5 in 
Product Depth (in.) 
0.565 
Product Height (in.) 
4.75 
Product Width (in.) 
3.75 

Details

Chemical resistant 
Yes 
Material 
Plastic 
Plumbing Part Type 
Toilet Flush & Fill Valve 
Returnable 
90-Day 

Warranty / Certifications

Manufacturer Warranty 
1 Year 

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Customer Questions & Answers

3 Questions5 Answers

Customer Questions & Answers

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

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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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Answers (2)

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

Rated 4.7 out of 5 by 16 reviewers.
Rated 5.0 out of 5.0 by 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. April 19, 2016
Rated 5.0 out of 5.0 by Saved money and time Lucky that I have #400A so parts are available if replacement are required. My first failure in the past 20+ of using this valve in a all my tanks. March 3, 2016
Rated 5.0 out of 5.0 by Easy Fix I wasn't sure I had a Fluidmaster 400A because it had a different number molded on the cap. But it looked like the 400A in the picture and the seal looked like the #242. So, for just over $2.00 I got our toilet working perfectly once again. It was an easy fix following the instructions on the Fluidmaster website. December 1, 2015
Rated 1.0 out of 5.0 by Not fit for older Fluidmaster model #200 For older Fluidmaster model, this is not replacement for Fluidmaster model 200. If you hold it up to Fluidmaster's 242 seal you can see the difference in thickness. Save yourself time and money and find the actual replacement seal, Fluidmaster 242. Or you need Fluidmaster 350 Fill Valve Cap to replace Fluidmaster #200. November 15, 2015
Rated 5.0 out of 5.0 by 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! June 6, 2015
Rated 5.0 out of 5.0 by Great Toilet Fix wish they advertised this better As preventative maintenance I just change this part about every 2-3 years on all my toilets. I didn't know this was the only rubber seal inside a fludmaster fill valve until I did some research. These wear out from chlorine in the water so expect to replace them every few years. I also flush out the cap when I change this and a few times I've gotten small rocks inside the cap. I have a extra whole house filter on my water line too. Also I showed this to my uncle since he's a pretty handy guy and he didn't know this is why fluidmasters won't turn off. After figuring this out I haven't switched out a fluidmaster assembly in over 5 years but I've put in probably 20 of these washers(showed it to friends and family) December 5, 2014
Rated 5.0 out of 5.0 by Suggestion This is a fairly easy fix for a non-handywoman like me. Only wish that Home Depot went back to selling these in multiple units in the little bag, like they used to. I have 5 toilets in my house, and once 1 of these needs to be replaced, it's not long after that they all start going. The bag of these saved time and money. March 27, 2015
Rated 5.0 out of 5.0 by Easy install for HydroClean fill valves This also fits HydroClean fill valves. Turn the water off, unscrew the water level regulator on the side of the fill valve, press down a bit on top of the unit and turn counter-clockwise, remove top, replace the seal. Next hold unit over top and screw the water level regulator in a bit, place the top back on top of the unit, press down a bit and turn clock-wise to re-engage. Adjust the water level regulator, turn the water back on , and test. March 3, 2015
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