123Stores via Newegg offers the Whynter Eco 14,000-BTU Dual Hose Portable Air Conditioner, model no. ARC-14S, for $467.99 with free shipping. That's the lowest total price we could find by $47. It features 14,000 BTUs, CFC-free refrigerant, three operating modes, three fan speeds, remote control, and programmable timer.