Korky

Korky is a toilet repair parts brand manufactured by Lavelle Industries, a rubber and plastics manufacturer that began operations in 1912. Lavelle introduced the first toilet flapper design in 1954, a patented innovation that became a new standard for toilet tank repair.

Korky remains a family owned, made in USA brand, with products designed and manufactured in Wisconsin. The flapper design that built the brand is still in use today and remains one of the best selling flappers in the United States.

Product Lines

Korky's catalog centers on toilet tank repair components, including flappers and seals, fill valves, and flush valves available in standard two inch and large three inch sizes with fixed or adjustable heights.

The lineup also covers complete toilet repair kits, StrongARM tank levers, wax free gaskets, tank to bowl gaskets, plungers, and related hardware, giving installers a single source for most tank rebuild jobs.

Why Contractors Specify Korky

Plumbers reach for Korky parts because the fill valves and flappers are built to fit a wide range of toilet makes and models, which cuts down on return trips for the wrong part. Universal repair kits bundle the components needed for a full tank rebuild into one package.

Made in USA manufacturing and a long production history give installers confidence in fit and material quality for both routine repairs and emergency service calls.

How to Choose Korky Products

Matching a flapper or flush valve to the existing toilet model is the first step, since flush valve size, two inch versus three inch, and flapper shape vary by toilet brand and age.

For fill valves, installers should confirm the tank's available space and whether an adjustable height model is needed to fit shorter or taller tanks. When a toilet has multiple worn components, a universal repair kit can address the flapper, fill valve, and related hardware in a single visit.

Frequently Asked Questions

How do I know which Korky flapper fits a specific toilet?

Flapper fit depends on the flush valve opening size and the toilet manufacturer, so installers typically match the flapper to the existing flush valve seat before replacement.

What is the difference between a 2 inch and 3 inch Korky flush valve?

The sizing refers to the diameter of the flush valve opening in the tank, with larger 3 inch valves used on toilets designed for a higher flush volume than standard 2 inch systems.

Can Korky fill valves be adjusted for tank height?

Many Korky fill valves include an adjustable height feature so installers can fit them to tanks of varying depths without sourcing a separate part.

Are Korky toilet repair kits a good option for a full tank rebuild?

Universal repair kits bundle the flapper, fill valve, and related hardware needed for a complete tank rebuild, which can simplify a single service call compared to sourcing individual parts.

Are Korky products made in the United States?

Korky products are designed and manufactured in Wisconsin as part of Lavelle Industries' US based production.