Blue Ribbon aquarium 100% Nylon Filter Bag Lot of 8 Total X's 3 -- 3X8" & X's 5

Blue Ribbon 100% Nylon Filter Bag. Lot of 8 Total X's 3 -- 3X8" X's 5 -- 4x12" Fill with your filtering media: carbon, resins, water softeners, etc. Safe for use in all freshwater & marine aquariums Ideal for pond filtration Does not hinder water flow Prevents filter mediums from entering pump housing Especially designed to fit most filtration units Use when filtering with charcoal, carbon, water softeners & resins