Carbon filter not included Waste less and save more with OXO GreenSaver Produce Keepers, a complete food storage system designed to keep produce fresher longer The enhanced carbon filter traps and absorbs ethylene gas, slowing down the aging process and reducing spoilage The elevated colander lifts produce up and away from the container walls to promote airflow from all sides and prevent rotting The adjustable vent on top of each Produce Keeper maintains optimum humidity levels for different kinds of produce, keeping them crisp and fresh The 5 qt/4.7 L capacity is ideal for carrots, zucchini, cucumbers and other long produce The enhanced carbon filter lasts 90 days.