4-Pack Replacement Filter S for Winix C545 Air Purifier, High-Efficiency 3-In-1
Not compatiblw with Winix C535, Winex, Sharp FP P40cx. Compatible Devices Winix C545. Model Number C545. Manufacturer Part Number C545. Just take the original filter out, and fit the new one in. Easy to replace and disposable, no tools required.