NT LABS Filter Media Bags (2 BAGS) When to use? Filter Media Bags are fine mesh, polyester filter bags, ideal for housing a variety of filter media including Phosphate Remover, Activated Carbon and Ammonia Remover. How to use? Simply add your desired media to one of the bags, rinse under the tap and add to the filter compartment. Specifications Available in the following variations: Contains 2 bags (with clips), 15 x 38cm
