Fluidmaster 500 Flapper
Score: 75/100
Lydia's Deal 2-inch Toilet Flapper Red
Score: 75/100Rankings
The Fluidmaster 500 is a universal 2-inch solid frame flapper designed for older 3.5+ GPF toilets, featuring Microban technology for durability. Its main limitation is the lack of adjustability and limited consumer feedback for long-term reliability. It is best suited for homeowners with standard 2-inch valves on older toilets needing a reliable, no-frills replacement.

The Lydia's Deal 2-Pack Universal Toilet Flapper is a high-performance rubber replacement kit designed for standard 2-inch flush valves. It features a one-piece design for easy installation and includes stainless steel chains. Best suited for users with Kohler, Toto, or American Standard toilets who need a straightforward, universal replacement.
| Attribute | Fluidmaster 500 Flapper | ![]() |
|---|---|---|
2 inchesbest | 2 inchesbest | |
1 count | 2 countbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | Fluidmaster 500 Flapper | ![]() |
|---|---|---|
Material & Durability(2) | ||
Material | Vinyl | Rubber |
Water Resistance | Unknown | true |
Design & Features(3) | ||
Chain Material | Metal | Stainless Steel |
Installation Type | Standard | DIY |
Flapper Type | Solid Frame | 1-piece |
Packaging & Support(1) | ||
Pack Quantity (count) | 1 count | 2 count |
Compatibility & Fit(3) | ||
Flush Valve Compatibility | 2 inches | 2-inch |
Toilet Type Compatibility | Pre-1994 (3.5+ GPF) | Standard |
Flush Valve Size | 2 inches | 2-inch |
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