AQUATOP Forza Polishing Micron Filters deliver superior supplemental filtration to keep your aquarium water crystal-clear. The PM-300 (317 GPH) is perfect for small to medium setups, while the PM-500 (500 GPH) is designed for larger tanks. These filters efficiently remove ultra-fine particles during activities like water changes or substrate cleaning, enhancing water clarity without replacing your primary filtration system. Easy to maintain with rinseable or replaceable cartridges, AQUATOP Forza Filters ensure your aquatic environment remains vibrant and healthy.