Sometimes you need nothing more than a simple, reliable window air conditioner or heat pump. When you come to Grainger, you not only get a huge selection of top-quality, brand name units in a wide range of BtuH capacities and energy ratings; you also get everything you need to keep the air conditioner firmly installed and operating efficiently-like coil cleaner, a wall sleeve, or even a halogen detector as an early leak warning system. When it comes to heating or cooling your space, an energy efficient window or wall air conditioner or heat pump could be your best solution.