DeLonghi 11,000 BTU Portable Air Conditioner

Costco offers its members the DeLonghi 11,000 BTU Dual-Hose Portable Air Conditioner, model no. T110P, for $299.99. (Non-members pay $15 more.) Although that's up $60 from our June mention, since expired, it's the lowest total price we could find by $178. This unit has the capability to cool up to 144-square-feet and features three fan speeds, LCD remote, 24-hour timer, window bracket, and more.