Carrier 317659-402 Fan Coil Filter 16.5" X 21.5" X 1"

The Carrier 317659-402 Fan Coil Filter 16.5 x 21.5 x 1 is an air filter that is used in the HVAC systems, which are in the fan coil units. It traps airborne particles as air flows through the coil section, which keeps air flowing and ensures internal parts are not dusted. This filter is installed in the air coming back to the house or light commercial units, and conducts the heat exchange efficiently and minimizing the load on the fans and sensors.