The Goodman ARUF18B14 is a standard 1. 5 Ton multi-position air handler that can be used with 1. 5 Ton air conditioners or heat pumps. This Goodman Air Handler is compatible with the R-410 refrigerant technology that does not use chlorine in the liquid refrigeration process and possess no harm to the environment or to the human health. The multi-positional capability of this air handler allows it to be installed in a variety of locations in the house, except in mobile homes and it also allows the air handler to work in either horizontal or vertical mode as well. The patented SmartFrame structure provides lateral stability to the unit and ensures longer life.