VM Innovations via eBay offers the Cool Living 6,000-BTU Window Mount Air Conditioner, model no. CL-WAC6A, for $149.99 with free shipping. That's the lowest total price we could find by $32. It mounts to a double-hung window with a width of between 22" and 36" and includes a remote control, seven modes, three fan speed settings, and extra long power cord.