Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
popular
neomatrixviper 1.2K Views
Oct 3, 2026 6:26 PM

Winix Genuine Replacement Filter S, 2-pack for C545 Air Purifier $59.99 free Shipping Costco.com

$60

$80

25% off
Costco Wholesale
Get Deal at Retailer

Why are you downvoting this deal?

Good Deal?
0Comments
Save
Share
Deal Details
https://www.costco.com/p/-/winix-...?langId=-1

$20 OFF
$20 manufacturer's savings is valid 10/1/26 through 10/31/26. While supplies last.
Limit 5 per member.

Two True Hepa Filters and 8 Activated Carbon Filters included, up to a Two Year Supply
True HEPA: Captures up to 99.97%* of Airborne Allergens as Small as 0.3 Microns
Activated Carbon Filters: Reduces VOCs and Odors from Cooking, Pets, and Smoke
The Genuine Winix Filter S is Compatible with Winix Air Purifier Unit C545
Recommended to Change the True HEPA Filter Once Every 12 Months and the Carbon Filter Once Every 3 Months
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
https://www.costco.com/p/-/winix-...?langId=-1

$20 OFF
$20 manufacturer's savings is valid 10/1/26 through 10/31/26. While supplies last.
Limit 5 per member.

Two True Hepa Filters and 8 Activated Carbon Filters included, up to a Two Year Supply
True HEPA: Captures up to 99.97%* of Airborne Allergens as Small as 0.3 Microns
Activated Carbon Filters: Reduces VOCs and Odors from Cooking, Pets, and Smoke
The Genuine Winix Filter S is Compatible with Winix Air Purifier Unit C545
Recommended to Change the True HEPA Filter Once Every 12 Months and the Carbon Filter Once Every 3 Months

Community Voting

Deal Score
+6
Good Deal
Bad Deal

Why are you downvoting this deal?

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!

0 Comments

Be the first to comment.

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!