Product Features: Dense floss removes particles and debris Activated carbon removes toxins, odors and discoloration Patented bio-holster removes toxic ammonia and nitrites Diffuser grid removes additional toxins while adding oxygen for more active fish Reduces splashing making the return exceptionally quiet Product Specifications: Manufacture: Aqueon Model: 6079 Manufacture Part Number: 6079 Approximate Product Dimensions: 12.9" x 8.4" x 6.6" (Length x Width x Height)