Ecological Labs 15in. X 16in. Medium Media Bag MBAGMD - Pack of 12

Features: -Media bag. -Color: Black. -For use with barley pellets, peat, zeolite, carbon pellets, all size bio balls, all types of media rocks and or any Microbe Lift pre colonizes filter media in nylon bags. -Industrial strength. -Can be placed directly into pond. -Easy to clean or change. -Folds to fit most filters or skimmers. -Large loop for securing to a retrieve line. -Dimensions: 8-12.25" H x 1.5-5" W x 1.5-5" D.