These refrigerator air filters are such a smart buy - you get 4 filters in one pack, which means you're set for like 2 years since each one lasts about 6 months! They're compatible with a ton of Whirlpool, KitchenAid, Maytag, Kenmore, Amana, and Jenn-Air models - specifically designed to work with filters like W10311524, W10335147, W10315189 and several others. What they do is keep your fridge smelling fresh by eliminating odors from strong foods like onions, garlic, fish, you know - the usual suspects. Installation is seriously easy - no tools needed, just pop out the old one and slide this in. Takes maybe 2 minutes tops. They work just as well as the OEM filters but cost way less, which is always nice. The company offers great customer service too - if you're not sure about compatibility, just reach out and they'll help you figure it out. Keeping your fridge smelling fresh has never been easier or more affordable!