new aprilaire bypass humidifier model 500 with digital control panel, new 20122013 model

NEW Aprilaire Humidifier Model 500 with Digital Control Panel. By-Pass type Humidifier for homes up to 3, 000 Sq. Ft. 5 years Manufacturer Warranty. Opening size 9 1/2 x9 1/2. This is a direct replacement for model 550.
UPC NO: 686720005008
SKU: ADIB009ZVA8ZC