Fluval C4 Activated Carbon 3x140g 14013 Fluval C4 Activated Carbon Insert for Fluval C4 Hang On Filter 3x140g Customer Rating  N/A Add Review Ask Question $7.95 Qty : < > Product Description Reviews (0) (View All) Questions (View All) Fluval C4 Activated Carbon improves water clarity for fresh and saltwater aquariums. Exclusively designed for the Fluval C4 Power Filter, the premium research grade carbon provides large amount of surface area for superior adsorption of impurities. It effectively removes heavy metals, odours, discolorations and pollutants, leaving your aquarium water crystal clear and sparkling. Directions: Remove protective plastic bag and rinse carbon insert thoroughly before use. Place insert into chemical media basket. To maintain water quality, it is important to replace insert every 2-4 weeks. To ensure constant presence of beneficial bacteria, do not replace all filtration media at the same time. 3x140g Add Review There are no reviews for this product. Ask Question There are no questions asked for this product. Ok