➤MAKE SURE YOUR TOILET IS READY TO USE - Please check the size in the second image before buying.Only compatible with TOTO 3 inch flapper valve THU128.Outside Diameter: 3.54inch/9cm; Inside Diameter:1.38inch/3.5cm;Thickness:0.1inch/0.3cm. ➤5 MINUTE EASY INSTALLATION - Rubber seal gaskets wear out over time and need to be replaced. Installation is simpler than you'd expect While Maintaining Simple Hygiene & Not Jeopardizing Quality From Your Toilet! and does not require you to remove the base of the toilet. Anyone Can Do It & It Takes Only Minutes To Install! ➤PACKAGE LIST - You can get 3 pieces white flush valve seal gasket. ➤IMPROVE YOUR FLUSH - There's nothing more problematic & embarrassing than when your toilet loses pressure & you have to deal with the commentary from your guests about the noise. Therefore, we offer you 3 flush valve seal replacements. It's time to keep your in-laws, friends & other family members living in tranquil surroundings. ➤WARM TIP - Before making a purchase, please ensure that the size we provide and the size you measure are suitable. This will prevent you from receiving unsuitable products and experiencing longer repair times.

Product Description：

Compatible with TOTO THU128/TOTO 9BU001ER flapper valve for one piece toilets replacement part silicone seals for flapper valve. 

Material :Silicone

Flush valve aging leaks in general only need to replace the seal, no need to replace the full flapper valve.

Works with most TOTO 3 inch FLAPPER VALVE toilets. Stays open longer because it's counter-balanced. Flapper valve stays open when they are counter-balanced. Easy installation and no tools needed, just loosen the clips of the old flapper & clip the new toilet flapper replacement down in its place, then attach the chain. Long lasting rubber toilet flapper replacement & stainless chain fixes leaky flapper, running toilet, double flush, worn toilet flapper. Best replacement for the old, leaky flappers. 3 inch toilet flapper replacement for TOTO - G-Max, THU499S, THU331S, THU175S & 2021BP Models. NOT COMPATIBLE with the following TOTO Power Gravity Toilet Models: CST43SD, CST744SD, CST44SLD, CST743SDB, CST744SDB, and CST744SLDB  soft sturdy rubber silicon - Corrosion-Resistant, provides the best seal water saving, cost saving - with the toilet flapper, you can easily fix the leaking toilet yourselves without calling a plumber.