---
product_id: 4586608
title: "Fluidmaster 504 2-Inch Universal Chlorine Resistant, Long Lasting Flexible Frame Toilet Flapper , Red"
brand: "fluidmaster"
price: "₩28902"
currency: KRW
in_stock: true
reviews_count: 8
url: https://www.desertcart.kr/products/4586608-fluidmaster-504-2-inch-universal-chlorine-resistant-long-lasting-flexible
store_origin: KR
region: South Korea
---

# 5-year durability warranty 2-inch universal fit Chlorine & hard water resistant Fluidmaster 504 2-Inch Universal Chlorine Resistant, Long Lasting Flexible Frame Toilet Flapper , Red

**Brand:** fluidmaster
**Price:** ₩28902
**Availability:** ✅ In Stock

## Summary

> 🚽 Upgrade your flush game with lasting power and universal fit!

## Quick Answers

- **What is this?** Fluidmaster 504 2-Inch Universal Chlorine Resistant, Long Lasting Flexible Frame Toilet Flapper , Red by fluidmaster
- **How much does it cost?** ₩28902 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/4586608-fluidmaster-504-2-inch-universal-chlorine-resistant-long-lasting-flexible)

## Best For

- fluidmaster enthusiasts

## Why This Product

- Trusted fluidmaster brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Durability:** Backed by a 5-year warranty, ensuring peace of mind and reliable function for years.
- • **Kink-Free Metal Chain:** Strong, tangle-proof chain guarantees smooth flushing every time without interruptions.
- • **Effortless Installation:** Designed to fit flush valves with or without mounting ears, making upgrades hassle-free.
- • **Universal Compatibility:** Fits most toilets including American Standard actuator units for seamless installation.
- • **Chlorine-Resistant Longevity:** Microban protection ensures long-lasting performance against harsh chemicals and hard water.

## Overview

The Fluidmaster 504 is a 2-inch universal toilet flapper designed for 3.5+ gallon flush toilets, featuring chlorine-resistant Microban protection and a kink-free metal chain. Compatible with most toilets including American Standard, it offers easy installation and a 5-year warranty for dependable, long-term performance.

## Description

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

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Fluidmaster |
| Material | Plastic |
| Color | Red |
| Product Dimensions | 7.5"L x 4.25"W |
| Item Weight | 0.02 Pounds |
| Outside Diameter | 2 Inches |
| Item Length | 1.75 Inches |
| UPC | 039961005045 |
| Manufacturer | Fluidmaster |
| Global Trade Identification Number | 00039961005045 |
| Part Number | 504 |
| Item Weight | 0.32 ounces |
| 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 |

## Product Details

- **Brand:** Fluidmaster
- **Material:** Plastic
- **Color:** Red
- **Product Dimensions:** 7.5"L x 4.25"W
- **Item Weight:** 0.02 Pounds
- **Outside Diameter:** 2 Inches
- **Item Length:** 1.75 Inches
- **UPC:** 039961005045
- **Manufacturer:** Fluidmaster
- **Global Trade Identification Number:** 00039961005045

## Images

![Fluidmaster 504 2-Inch Universal Chlorine Resistant, Long Lasting Flexible Frame Toilet Flapper , Red - Image 1](https://m.media-amazon.com/images/I/61j4ZQRLHqL.jpg)
![Fluidmaster 504 2-Inch Universal Chlorine Resistant, Long Lasting Flexible Frame Toilet Flapper , Red - Image 2](https://m.media-amazon.com/images/I/71TYdscI7cL.jpg)
![Fluidmaster 504 2-Inch Universal Chlorine Resistant, Long Lasting Flexible Frame Toilet Flapper , Red - Image 3](https://m.media-amazon.com/images/I/61ajGvaxBZL.jpg)
![Fluidmaster 504 2-Inch Universal Chlorine Resistant, Long Lasting Flexible Frame Toilet Flapper , Red - Image 4](https://m.media-amazon.com/images/I/713Nvx7aYRL.jpg)
![Fluidmaster 504 2-Inch Universal Chlorine Resistant, Long Lasting Flexible Frame Toilet Flapper , Red - Image 5](https://m.media-amazon.com/images/I/81SIe-985ZL.jpg)

## Questions & Answers

**Q: what are the dimensions of this item**
A: All of these are pretty standard in size. This is made so that it will fit at least two different sizes. The way it came, it didn't fit, but I used scissors as instructed to cut one little piece off of it, and it fit perfectly, snapped right into place and worked like a dream. The whole thing (including going and finding a pair of scissors) took less than 5 minutes. That includes reading the instructions, too. Unless your toilet was made in another country, I'd guess there's a 99% chance that this will either fit perfectly as-is, or with a small cut with scissors, will fit perfectly. Pay attention to where the chain from the lever is fastened so you can fasten it back in the same place.

**Q: Has anybody used this flapper successfully in modern (1.6 gpf) toilets, or will it only work in old 3.5 gpf toilets?**
A: You could try it in a 1.6 GPF toilet...But it works best for 3.5 GPF toilets made before 1994. Fluidmaster  labels it as being a universal flapper. That's all I know about it. Other than it has a 5 year warranty.

**Q: I release the toilet lever it goes straight to the bottom which means that the tank doesn't fully empty.  Its predecessor floated.  What's wrong?**
A: Some flapper just do this.. I just hold the toilet flushing handle down a few minutes to be sure it is fully empty.

**Q: The fluidmaster 504 is the form I need because the toilet is old and does not have mounting ears but is it made out of rubber or plastic?**
A: Thank you for your question concerning our flapper model 504.  The flapper is an all rubber model.  For additional questions on any Fluidmaster product contact us at your earliest convenience. 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ cheap cost, easy install, fits perfectly.
*by G***A on March 22, 2025*

Cost under 5 dollars, less than a minute to install and it works perfectly. If you are nervous about trying to change it yourself don't be it's so easy. Look at the existing flapper on your toilet and make sure you know whether to get a 2 inch (baseball or orange sized) or 3 inch (softball or grapefruit sized).I have to say I read the reviews and one reviewer told in detail how he installed it without shutting the water off. I did as he suggested, I cut the middle mounting part just leaving the two wing sides, flushed the toilet to get the water out, and instead of holding the float arm up I used an artists paint brush placed horizontally over the toilet lip front to back with the float arm over it to hold it up. Then removed the old flapper and slipped this one on. Then used the chain length on the old one to figure out how much chain to use on the new one, situated the chain length hooked it onto the float arm and I was done.I don't know long the flapper will last, but the one I removed was the same kind and i've lived here for 13 years, if it stops working in a short period of time I will amend my review. If I don't, assume that it's still working.

### ⭐⭐⭐⭐⭐ Better Than the One My Plumber Installed
*by L***A on June 25, 2025*

Easy to install, does what it's supposed to do. The rubber is flexible so it will last longer than the stiffer type of flapper that, from my experience, tends to lose its ability to create an effective seal for a reasonable length of time.

### ⭐⭐⭐⭐⭐ Very good flapper for older toilets !
*by A***R on May 1, 2025*

This is a great flapper for an older toilet ! My toilet in my basement is from the 1970's and was running from time to time . I installed this Fluidmaster flapper and problem solved no more running toilet . Was very easy to install too,I didn't even have to turn the water off ! I highly recommend this flapper if you have an older toilet . It says right on the package before 1994 !

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-22*