Home Slickdeals Costco Members: Winix C909 4-Stage Air Purifier $159.99 + $5 S/H Slickdeals Costco Members: Winix C909 4-Stage Air Purifier $159.99 + $5 S/H By ARCOM - 9 November 2023 17 0 SHARE Facebook Twitter Go to the deal page: Costco Members: Winix C909 4-Stage Air Purifier $159.99 + $5 S/H