Home Slickdeals Costco Members: Midea Duo Smart 12K BTU 4-In-1 Inverter Portable Air Conditioner... Slickdeals Costco Members: Midea Duo Smart 12K BTU 4-In-1 Inverter Portable Air Conditioner $449.99 By ARCOM - 13 July 2023 19 0 SHARE Facebook Twitter Go to the deal page: Costco Members: Midea Duo Smart 12K BTU 4-In-1 Inverter Portable Air Conditioner $449.99