Korky Dual Flush Valve Seal 442

What matters most

A worn or mismatched flush valve seal can make a toilet tank harder to keep working as intended. This Korky replacement is made for a defined group of dual-flush toilets, so the key buying question is whether your tank or flush valve matches the listed models.

It includes one 442 Dual Flush Seal. That focused part can be useful when you need to replace the seal rather than buy a broader repair assortment.

Compatibility is specific, not universal. Ten en cuenta que a toilet from a listed brand is not automatically a match, the tank or flush valve model needs to line up with the details below.

The listed fits are Aquasource tank model EL205 and flush valve model A2417, Mansfield tank model 178, Seasons tank model TL-4765HET-EW, and Jacuzzi tank model SW07959. The description also lists flush valve model A2417 separately. It is made in the USA.

How to use it

Treat the model numbers as the first step, not as a detail to check after ordering. Find the tank model information for your toilet and compare it with the compatible models. If you have the flush valve model, check that as well—A2417 is specifically named.

For example, if you are dealing with a dual-flush toilet and have identified an Aquasource EL205 tank, this seal is listed for that configuration. If the brand matches but the model number does not, the available information does not establish compatibility. In that case, a seal identified for your exact toilet is a safer route than choosing by appearance alone.

The product details do not provide installation steps or troubleshooting guidance, so use the instructions for your toilet or flush-valve assembly when replacing a part. This listing identifies the seal and supported models, rather than explaining how to diagnose a flush problem.

Practical tips

Before choosing, write down the tank model and, if available, the flush-valve model. Compare the full identifier, including letters and numbers, the Seasons model, for instance, is listed as TL-4765HET-EW. A partial match is not enough to confirm fit.

It makes sense if you have one of the named dual-flush toilet configurations and need the included 442 seal. Compared with buying a general-purpose repair kit, this is a narrower, part-specific purchase: you get one seal, with compatibility details that can help avoid selecting an unrelated component.

You may want to skip it if your toilet model is outside the list, you cannot identify the model, or you need more than one seal. The product information does not say that additional parts are included.

Before you decide

How many seals are included? One 442 Dual Flush Seal is listed.

Which toilet models are named? Aquasource EL205, Mansfield 178, Seasons TL-4765HET-EW, and Jacuzzi SW07959 tanks are listed, along with flush valve model A2417.

Is it made in the USA? Yes, the product description identifies it as made in the USA.

When it makes sense

Buy this seal when your toilet’s tank or flush-valve model matches one of the identifiers provided and you need a single replacement seal. If you are still diagnosing the issue, have a different model, or need a more complete repair set, first identify the exact part your toilet requires, the limited fit list and one-seal contents make this a targeted replacement, not a general dual-flush repair solution.