Fluidmaster 502 Universal Toilet Flapper 3-Pack
- Outlet Connection Size: 2 inches
- Inlet Connection Size: 2 inches
- Thread Size: 2 inches
- Valve Type: Flapper
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A well reviewed universal 2 inch flapper pack with genuine water-saving adjustment, a sensible default pick before hunting for a brand-specific part.
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ASIN: B009XUGQQKModel: 502Category: Toilet Flappers
Overview
A 3-pack of solid-frame 2-inch toilet flappers with an adjustable water-saving dial, built to fit most 2 inch flush valve toilets from 1.28 to 3.5 gallons per flush.
Fluidmaster sells this as a pack of three rather than a single flapper, so it doubles as a stock-up purchase for a household with more than one toilet or a spare for later. The dial lets one flapper adapt to different flush volumes instead of buying a model-specific part.
- 3-pack of 2 inch flappers
- Adjustable water-saving dial
- Fits 1.28 to 3.5 gpf toilets
- Microban corrosion resistant frame
Who it's for
Anyone replacing a leaking or twisting flapper on a standard 2 inch flush valve toilet, especially households with multiple toilets who'd rather buy three at once than order again in six months.
Pros and cons
- Pack of three covers spares or multiple toilets
- Adjustable dial fits a range of flush volumes
- Corrosion resistant Microban frame material
- 2 inch fit only, not for 3 inch valves
Performance notes
The adjustable dial changes how much water releases per flush, letting one part cover the 1.28 to 3.5 gallon range instead of needing a size-matched flapper. Microban-treated material and chlorine and hard-water resistance target the corrosion and mineral buildup that make old flappers stop sealing.
Specifications
| Brand | Fluidmaster |
|---|---|
| Model | 502 |
| Dimensions & fit | |
| Outlet Connection Size | 2 inches |
| Inlet Connection Size | 2 inches |
| Thread Size | 2 inches |
| Item Weight | 0.46 pounds |
| Size | 3 Count (Pack Of 1) |
| Item Dimensions | 10.4 × 2.6 × 5.1 inches |
| Construction & materials | |
| Material Type | Rubber |
| Exterior Finish | Powder-Coated Plastic |
| Included components | |
| Number Of Pieces | 3 |
| Number Of Packs | 3 |
| Unit Count | 3 |
| Included Components | 502 Performax Adjustable 2 Inch Toilet Flapper Pack |
| Warranty & support | |
| Manufacturer Warranty Description | 5-Year Limited Warranty |
| Other details | |
| Valve Type | Flapper |
| Outlet Connection Type | Direct Fit |
| Inlet Connection Type | Compression |
| Number Of Ports | 2 |
| Number Of Items | 1 |
| Item Type Name | Water-Saving Long Life Toilet Flapper For 2-Inch Flush Valves, Adjustable Solid Frame Design, Easy Install |
| Item Highlight | Three solid-frame flappers, Adjustable water-saving dial, Fits most 2 in. flush valves, Resists chlorine and hard water |
| Set Name | 3-Pack |
Frequently asked questions
How many flappers come in the Fluidmaster 502CN3 pack?
Three solid-frame flappers ship in one pack.
What flush volumes does it work with?
The adjustable dial is built to suit toilets from 1.28 up to 3.5 gallons per flush.
How long does installation take?
Amazon's listing states it installs in 10 minutes or less.