Keep the air in your Sub-Zero refrigerator or kegerator clean with this air purification cartridge. Designed for all models, this carbon filter removes impurities and pollutants from the air in your compact fridge, commercial kegerator, larder fridge, kegerator tank/cartridge, kegerator tap, compressor wine fridge, or chest freezer. With a capacity of one air filter, this Sub-Zero Air Purification Cartridge is the perfect addition to your refrigeration system. The black color and sleek design make it a stylish addition to your kitchen.