- [Models] Compatible with Kohler models GP84138, 84313, 85655, and 89825, our Shark Fin flappers are the ideal replacement for your toilet's flush valve. - [Construction] Made from high-quality Dura-Chlor, these flappers offer exceptional durability and are resistant to chlorine and hard water, ensuring long-lasting performance. - [Repair] This non-OEM replacement effectively addresses leaky toilet flush valves and features a low water consumption bulb, promoting water efficiency. - [Install] Enjoy hassle-free installation with no tools required, making it easy for anyone to replace their flapper quickly and efficiently. Use Scenarios: 1. Replace your old, worn flapper to eliminate frustrating toilet leaks and save on water bills. 2. Upgrade to this durable option during routine maintenance to ensure optimal flush performance. 3. Ideal for landlords or property managers looking to make quick, reliable repairs in rental units without professional assistance.