Fluidmaster 504 2-Inch Universal Chlorine Resistant, Long Lasting Flexible Frame Toilet Flapper , Red

4.5 4.5 out of 5 stars | 3,143 ratings

Price: 4.48

Last update: 01-30-2025


About this item

Universal design fits most toilets, including American Standard actuator units – for 3.5 gallons per flush toilets or larger
Fits on flush valves with or without mounting ears
Chlorine-resistant with Microban protection
Strong, kink-free metal chain
5-year warranty
Pre-1994 Full Flush flapper
Note: This product is designed to fit toilets with 2″ flush valves
Chlorine and hard water resistant
Pre-1994 Full Flush flapper
Universal design fits most toilets, including American Standard actuator units
Fits on flush valves with or without mounting ears
Five year warranty

Product information

Technical Details

Brand ‎Fluidmaster
Material ‎Plastic
Color ‎Red
Item Weight ‎0.02 Pounds
Item Length ‎1.75 Inches
UPC ‎039961005045
Manufacturer ‎Fluidmaster
Global Trade Identification Number ‎00039961005045
Part Number ‎504
Item Weight ‎0.32 ounces
Country of Origin ‎China
Item model number ‎504
Is Discontinued By Manufacturer ‎No
Size ‎Pack of 1
Style ‎Toilet Flapper
Item Package Quantity ‎1
Number of Handles ‎1
Special Features ‎Water resistant
Included Components ‎No Other Components Included
Batteries Included? ‎No
Batteries Required? ‎No
Warranty Description ‎5 year warranty

Top reviews from the United States

  • Ben Alexander
    5.0 out of 5 stars Exactly what was needed and the price was right!
    Reviewed in the United States on December 20, 2024
    If you’re looking for one of these for your toilet tank, it works great. No more toilet leaking/running. Super easy to install and fit like a glove.
  • noisyparker
    5.0 out of 5 stars Leaked initially, but looks like that was my fault
    Reviewed in the United States on November 13, 2024
    I had used one of these flappers for my downstairs toilet a couple years back, and it worked just fine. When the upstairs toilet needed a new flapper recently, I got another one of these again. The replacement went quickly and seemed okay initially. Unfortunately I found that this one had a slow leak in the seal, and I'd hear the toilet top off the tank periodically.

    I was thinking I'd need to replace the prior overflow and flush valve to better match the new flapper (and was not looking forward to the steps involved in that), but when I popped the lid off to take another look at it earlier today, I noticed the chain to the flapper seemed almost taut. I detached the chain and attached it again with more slack. No leaking since then! =D My initial estimate of which chain link to use was probably off, and was keeping it from getting a good seal.
  • Professional Engineer
    5.0 out of 5 stars Easy peasy - I didn't even shut the water off!
    Reviewed in the United States on June 25, 2023
    Just follow the directions on back. I didn't even shut the water off. I brought some stainless wire wool to clean dishes and a scissors and set them on the counter. I opened the flapper valve package and set it on the counter. I flushed the toilet and while the water was running out I scrubbed the seat that the water was going through with the stainless steel wire wool for pots and pans. The flushing of the tank cleaned it all out. I just removed the old one by pulling it off of the 'ears' sticking out of the standpipe with one hand while holding up the float with the other. I checked the new one for size and fit (the long droopy side with the hole in it goes down). Then I held the float and flapper valve in the same hand and with the other hand cut the center doodads out with two snips of the scissors being careful not to drop the cutout into the flush hole. You'll figure it out. The directions on the package back and the float valve both indicate where to cut. I did two cuts where the float valve said 'cut' and then slipped the rubber arms of the float valve over the standpipe ears with one hand while still holding the float up with the other. Remember the oblong part with the hole goes down. I flipped the float valve up and down a couple of times to make sure it was seating roughly close and to ensure it wasn't binding. Then I used the old float valve next to the new float valve and checked the chain length. With the new float over the flush hole, I let go of the float and allowed the tank to fill while I adjusted the new chain length and clipped it next to the old float valve chain attachment being careful not to yank and flush the toilet. It wouldn't matter if it did - I just didn't want to waste more water. Done. And it works like a jewell.
  • J. King
    4.0 out of 5 stars Worked Great
    Reviewed in the United States on December 19, 2024
    I works that is all I can say about the item. It did connect easily and price was right!
  • Gardenlady1948
    5.0 out of 5 stars Old Timey people know how to make things work!
    Reviewed in the United States on January 6, 2025
    It works as expected just as designed and how it has for years!
  • Teman
    5.0 out of 5 stars Nice Pliable Flapper Sealed Well
    Reviewed in the United States on January 23, 2025
    This was exactly what I needed to fix the dripping in our tank. The rubber like material is very soft and flexible unlike the hardened flapper that I was replacing. It took 5 minutes to install. I had to shorten the chain a few links to achieve the proper 'j' shape to the chain that the instructions recommend, otherwise the chain would catch on the flapper. It was really easy.
  • Megan
    3.0 out of 5 stars Didn't last long
    Reviewed in the United States on March 18, 2024
    Easy to install, but only lasted 2 years.
  • Kim S.
    5.0 out of 5 stars Easy!
    Reviewed in the United States on January 24, 2025
    This product is super easy to install. It took just a couple of minutes and I'm no Plummer.

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