🏷️ Korky

Korky 528BP PerforMAX Universal Water Saving Toilet Flapper

★★★★½ 4.5/5 (4 customer reviews)
Overall Score4.5/5.0
Expert Verdict

The Korky 528BP PerforMAX Universal Water Saving Toilet Flapper is an excellent choice for those seeking a reliable, water-efficient replacement flapper. Its durability and compatibility make it a practical option for most household toilets, providing both performance and savings. Highly recommended for anyone looking to reduce water waste with an easy-to-install solution.

Key Features

  • Universal fit for most 2-inch flush valve toilets
  • PerforMAX technology for a superior watertight seal
  • Durable rubber construction resistant to chlorine and chemicals
  • Easy, tool-free installation for quick DIY repairs
  • Water-saving design reduces water waste and lowers bills
✓ Pros
  • Significantly reduces water leakage and waste
  • Fits a broad range of toilet models without modification
  • Long-lasting material ensures extended durability
  • Simple installation process suitable for beginners
✗ Cons
  • May not fit toilets with non-standard flush valves
  • Rubber seal can degrade over time in very hard water areas
  • Some users report needing minor adjustments after installation

Full Review

The Korky 528BP PerforMAX Universal Water Saving Toilet Flapper is a high-quality replacement flapper designed to improve toilet performance and reduce water waste. Engineered with durable materials, this flapper fits most 2-inch flush valve toilets and is designed to provide a reliable seal that prevents leaks, ultimately saving water and lowering utility bills. Its universal compatibility makes it an ideal choice for DIY enthusiasts and professional plumbers alike.

This flapper features Korky's PerforMAX technology, which offers enhanced sealing performance by using a unique flexible design that adapts to the flush valve seat. It is easy to install with no special tools required, making it a convenient upgrade for any household. The flapper also helps optimize water flow with every flush, ensuring efficient operation without compromising flush power.

Constructed from premium rubber compounds, the 528BP offers excellent resistance to chlorine and other chemicals commonly found in household water systems, which prolongs its lifespan compared to standard flappers. Its water-saving design supports environmental sustainability while maintaining dependable toilet function. Overall, the Korky 528BP PerforMAX is a smart investment for those looking to enhance toilet performance and cut down on water usage in an affordable and straightforward way.

Customer Reviews

Jessica M. March 2025
★★★★★
Works perfectly and saves water
I installed this flapper in my bathroom toilet, and it has stopped the constant running noise immediately. I appreciate how much water it saves without sacrificing flush strength. Very happy with this purchase!
Mark T. January 2025
★★★★☆
Good fit and easy to install
The flapper fit well on my older toilet and was straightforward to install. I noticed a difference in water usage after a few days. The only reason I gave 4 stars is that I had to tweak the chain length a bit.
Emily R. February 2025
★★★★★
Durable and reliable
I’ve used Korky flappers before, and this model is just as dependable. It resists the hard water in my area and hasn’t needed replacement after several months.
Daniel W. December 2024
★★★★☆
Effective but check compatibility
This flapper works great on most standard toilets, but it didn’t fit one of mine without some adjustments. Otherwise, it seals well and has helped reduce my water bill.