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Primary replacement filter set

Winix Filter I – 116131 replacement filter

Filter I (116131) fits Winix C555 according to the cited Winix source.

Official manufacturer Filter I 116131 Check official Winix availability Non-affiliate link to the cited official product page.
Marketplace search Check eBay prices for 116131 Sponsored eBay links. We may earn a commission from qualifying purchases.

Quick fit check

Filter I fit and replacement facts

Part number116131
Compatible models1
Filter rolePrimary replacement filter set

Winix sells this as a one-year replacement filter set: replace the set every 12 months. The included AOC carbon filter is washable during that period.

Compatible Winix models

Follow a model link for its complete primary, optional, specialty, and alternative filter list.

Model Filter Part number Role Source Marketplace
Winix C555 Filter I 116131 Primary replacement filter set Winix America Filter I - 116131 Check prices

Buying checklist

What to check in a filter listing

Confirm that the listing names part 116131 and one of the compatible models: Winix C555. Similar-looking filters are not proof of fit.

Decide whether you want an OEM or aftermarket filter, then compare the included pieces, product photos, seller details, delivery estimate, and total price.

Care guidance

Replacement schedule

Winix sells this as a one-year replacement filter set: replace the set every 12 months. The included AOC carbon filter is washable during that period.

Usage conditions can affect service life. Follow the cited manufacturer guidance for this part.

Frequently asked questions

How often should I replace the Winix Filter I (116131)?

Winix sells this as a one-year replacement filter set: replace the set every 12 months. The included AOC carbon filter is washable during that period.

Which Winix models use the Filter I 116131?

According to the official Winix product page, Filter I (116131) fits Winix C555. Verify the model label on your unit before ordering.

Do aftermarket 116131 filters work?

Marketplace listings may be from the manufacturer or a third party. Match the exact part number 116131, review the listing details, and verify the model label on your unit before buying.

Manufacturer source

Official Winix America product page identifies Filter I, SKU 116131, as compatible with model C555.

Winix America Filter I - 116131

Source compatibility checked 2026-05-24. Recheck the listing and your purifier label before ordering.