The highest quality universal fluidization filter engineered for use with a wide range of filtration media. Designed by engineers and aquarists to deliver efficient, reliable filtration in the most demanding marine and reef tanks, this media reactor handles activated carbon, phosphate adsorbents and zeolites with ease. Its leak‑proof construction and robust materials allow installation either inside a sump or externally, making it ideal when sump space is limited. The scratch‑ and discoloration‑resistant body ensures long-lasting clarity, while internal sponges prevent media from entering the aquarium water.Ergonomic design and a smart-twist opening make maintenance fast and simple, and the easy-change system streamlines media replacement for hobbyists and professionals alike. We recommend using an optimal mix of high-quality filtration media (carbon, phosphate adsorbents, zeolites) for best results. Comfortable smart-twist opening for fast access Easy-change system — simple media replacement Adjustable sieves height for controlled fluidization Fully leak-proof — suitable for external mounting Hose ends included for versatile plumbing Durable, scratch- and discoloration-resistant construction AF 90 Capacity: 1300 ml (44 fl. oz.) Height: 31 cm (12.2″)Base diameter: 13 cm (5.1″)Acrylic tube diameter: 90 mm (3.5″)Connectors diameter: 16 mm (5/8″) AF 110 Capacity: 2800 ml (95 fl. oz.)Height: 38 cm (15″)Base diameter: 14.5 cm (5.7″)Acrylic tube diameter: 110 mm (4.3″) AF 130 Capacity: 5000 ml (169 fl. oz.)Height: 45.5 cm (17.9″)Base diameter: 16.3 cm (6.4″)Acrylic tube diameter: 133 mm (5.2″)Connectors diameter: 23 mm (1″)