Thumb Score: +18

$20 OFF
$20 manufacturer’s savings is valid 7/23/26 through 8/2/26. While supplies last.
Limit 5 per member.

Winix Genuine Replacement Filter S, 2-pack for C545 Air Purifier: https://www.costco.com/p/-/winix-…?langId=-1

Winix Replacement Filter Pack for C535 and C909 Air Purifiers, 2-pack also on sale: https://www.costco.com/p/-/winix-…?langId=-1