Description Designed to mount to the wall of your refrigerator crisper drawer, this insert features an activated carbon filter that absorbs the ethylene gas that can cause spoiling. Features All-natural activated-carbon filter is made from coconut husks and absorbs escaping ethylene gas to extend the usable life of produce Sliding date indicator makes it easy to see when to change filters Each filter lasts 90 days Set of two Specifications Manufacturer: OXO Material: BPA-free plastic, activated carbon filter Dimensions: 3.5" x 4.5" x 0.75" Made in China What's In the box? Set of 2