The Korky Adjustable Flapper (100BP) is designed for toilets with varying gallon capacities, including 1.28, 1.6, 3.5, and 5 gallons. Manufactured by Braxton Harris, this flapper is crafted from high-quality materials to ensure a reliable seal and prevent leaks. Its adjustable design allows for precise water flow control, optimizing toilet performance and water efficiency. This flapper is easy to install and compatible with most toilet models, making it a versatile choice for both new installations and replacements. With its durable construction, it meets industry standards for longevity and reliability.