2" Toilet Canister Flush Valve Kit for Kohler 1188999 1.28GPF Compatible with Kohler Cimarron K-4421

["PERFECT COMPATIBILITY: Specifically designed for Kohler Cimarron series toilets, including the popular K-4421 tank model. Direct replacement for part number 1113629","ADVANCED AQUAPISTON TECHNOLOGY: Features a patented canister design that allows water to flow into the bowl from 360 degrees, increasing the power and effectiveness of every flush","LEAK-FREE RELIABILITY: Includes a high-quality silicone seal that resists chlorine and hard water, preventing common \"ghost flushes\" and constant running water issues","FAST & EASY INSTALLATION: DIY-friendly design allows for a quick swap in minutes without specialized tools. Restore your toilet's peak performance effortlessly","GENUINE PERFORMANCE: Optimized for 1.28 GPF high-efficiency toilets, ensuring a powerful rinse while saving water and reducing utility bills"]