Sub Zero 7042798 Air Purification Cartridge fridge_height_81 900 Btu Cooling Capacity For 900 Btu Cooling Capacity For Extra Large Rooms Up To 1 Sealed Burners Ensure A Cleaner Cooking Experience 24" Width For The Perfect Fit Durable Cast Iron Grates Hold Up To Heavy Cookware Attractive Brushed Chrome Surface Adds A Modern Look To Any Counter Wide Range Of Flame Adjustment Allows You To Get More Precision In Heating Made In The USA Made In The U Sub Zero refrigerators come with an air purification system (based on technology developed by NASA) that scrubs the air of ethylene and odor every 20 minutes a naturally occurring compound that hastens food ripening and spoilage