The Nu-Clear Model 1547 Extension Kit doubles the height of the Nu-Clear filters, allowing the use of twice as many bio balls. The extension kit for the Model 547, Biological Filter w/ Bio Balls includes bio balls. It expands the capability of the Model 547 Canister Filter so it can handle freshwater and saltwater fish-only tanks up to 180 gallons and ponds up to 600 gallons.All extension kits include the body extensions, stainless steel band clamp and 1" mpt port plug. Extensions kits include a plug for the redundant inlet on the bottom filter. It is not recommended to mix different types of cartridges or media (i.e. Do not use a Model 547 with Extension Kit 1522, only use the Model 547 with the 1547 Extension Kit).
Our mission
Fish Tanks Direct Specializes in Acrylic Aquariums delivered right from the factory floor. Save thousands of dollars off of your next custom acrylic aquarium by shopping with us. We have been in the Fish Tanks industry for over 20 years and we have knowledgeable staff that will be happy to pick out the perfect acrylic aquarium for your home. Don't forget to shop by shape! We have a wide assortment of shapes that you can choose from which come in many of the popular sizes. Our customized fish tanks do not come with stand or canopy so you will have to order them separately. Many of the wood stains are minwax colors so check your local hardware store to see the actual color as the web can distort the actual color.
We also carry a full line of filters for your aquarium. We can perfectly match your aquarium up with a powerful protein skimmer and or canister filter. It is critical that you have proper filtration when purchasing your acrylic fish tank. Advanced hobbyists can take advantage of our low cost aquarium chillers. We have better brands at a lower price than many of our competitors. Need clean water? Passionate about getting rid of parasites? We carry Reverse Osmosis systems, UV sterilizers, and Ozonizers to fit any application. Simply ask one of our helpful staff members to help you out.