Mesh Bag for Bio Balls Filter Media - 2 Pack - 10" x 12" - Perfect for Aquarium and Pond Filter Media

Mesh Filter Media Bag for Pond Biological Filtration Our pond media bag is constructed of long lasting black nylon mesh and is reinforced with heavy duty stitching to SECURELY HOLD large biological filtration media for ponds and water gardens. Works perfectly to hold 100 - 1.5 inch Large Aquatic Experts Bio Balls. This media bags' 1/8 inch mesh holes allow water to flow freely through the bag to maximize filtration. Simply place our high-flow mesh bags filled with your choice of media in the path of flowing water. The rustproof all plastic zipper keeps bio balls and other large filter media securely in the bag.