From industry firsts to industry standards, Marineland products are designed with both performance and style in mind. We push precision and power beyond the expected and listen to our loyal customers to make our products even better. We do this because at the heart of our innovative spirit is a desire to help hobbyists everywhere do more, create more and, most of all, enjoy more. So whatever your customers are passionate about — freshwater or saltwater, big or small, beauty or science — help them make their aquarium their own. Make it Marineland. Marineland Rite-Size Cartridge Refills feature Black Diamond Premium Activated Carbon which works twice as fast and keeps working after other carbons quit. These cartridges also come in a variety of sizes to meet any filtration need! Each cartridge is pre-assembled and meets the highest standard of water purification and operational ease. For best results, change cartridge every 2-4 weeks for a crystal clear, healthy aquarium.

BIO-Wheel technology delivers wet/dry biological filtration for nitrifying bacteria growth. CHEMICALLY filtered through Black Diamond Premium Activated Carbon. THREE-STAGE FILTRATION: Mechanically filters water through a pad of double-thick poly fiber. EASY TO INSTALL: Pre-assembled cartridges slide easily into place, providing mechanical and chemical filtration and making replacement fast, dry and effortless. REPLACEMENT FILTER CARTRIDGE: Pack of 4 cartridges fits Marineland Emperor PRO Power Filter 450; also fits original Emperor Power Filters 280 and 400.

Best Sellers Rank: See Top 100 in Pet Supplies. Brand: MarineLand. Product Benefits: Mechanically filters water through a pad of double thick poly-fiber, trapping debris and waste particles before the water is chemically filtered through Black Diamond Premium Activated Carbon See more. Duration: 2-4 weeks. Item Weight: 0.23 Kilograms. Material: Double thick poly-fiber. International Shipping: This item can be shipped to select countries outside of the U.S. Domestic Shipping: Item can be shipped within U.S. Country of Origin: USA. : B0002565SY. Manufacturer: Marineland. Date First Available: May 28, 2003. Department: Filter Media. Item model number: PA0137-04. Product Dimensions: 4 x 6 x 9.5 inches; 7.97 Ounces. Is Discontinued By Manufacturer: No.