Gerber Toilet Tank-to-Bowl Gasket – 99-591

A high-performance Gerber toilet tank-to-bowl gasket (99-591) ensures a watertight seal between your toilet tank and bowl, preventing leaks and reducing noise. Designed for easy DIY replacement, this premium gasket fits a wide range of Gerber models, including 21-752, 21-372, Ultra Flush 28-380, 28-384, 28-385, and 28-790, as well as compatible with Fluidmaster 21-752 and 21-372 tanks. Crafted from durable rubber, it resists corrosion, cracking, and wear, extending the lifespan of your toilet while maintaining a quiet, leak-free operation.

Cross-referenced with Gerber part numbers 99-582 and 99-537, this gasket is a direct replacement for standard tank-to-bowl connections, making it ideal for both maintenance and full toilet overhauls. Its flexible design absorbs shock, reducing vibrations and operational noise, while its robust construction ensures long-term reliability. Perfect for homeowners and DIYers, this gasket simplifies repairs—just remove the old seal, secure the tank, and install the new part in minutes. Upgrade your toilet’s performance with a gasket that keeps water where it belongs and your plumbing running smoothly.