The Fluidmaster 502P21 PerforMAX flapper is pretty versatile and should fit most toilets that use a 2-inch flush valve. But although it's labeled as 'universal,' it's not guaranteed to work with every single toilet out there. For instance, some Toto and certain [Kohler](https://www.shopsav
The Fluidmaster 502P21 PerforMAX toilet flapper is well-regarded for its ability to help save water while still performing well. According to our research, it's designed for high-efficiency toilets using between 1.28 to 3.5 gallons per flush and has an adjustable dial that lets you tweak the flush to save even more water.
A cool thing about this flapper is the adjustable feature—you can control h
The Fluidmaster 502P21 PerforMAX toilet flapper is pretty straightforward to install, mainly because it's designed to fit most 2-inch flush valves. These are pretty standard in lots of toilets, even those with high-efficiency or slightly older models. The manufacturer talks about its universal design aimed at maximizing flush efficiency while saving water, which sounds handy.
From what we've foun
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In most cases, yes. Our answers are researched using ShopSavvy's product database, real-time pricing from thousands of retailers, and analysis of user reviews. That said, product details can change — we recommend checking the latest prices and availability before making a purchase.
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