Whirlpool FreshFlow™ produce preserver. Produce preserver absorbs ethylene allowing the ripening process of many produce items to slow down. As a results, certain produce items will stay fresh longer that are kept in your crisper drawer. It extends freshness of produce up to 25%. Packet contains two pouches which will be put in the housing in your crisper drawer. Packet also contains a status indicator to help you remember to change the pouches. Replace pouches and status indicator every six months for optimal freshness.