Contact the company by telephone: 1-800-255-4527 or contact the company by writing to: Central Aquatics, 9675 South 60th St., Franklin, WI 53132 ATT: Warranty

Instructions For Use: A complete list of installation, set up guide and important safety instructions is included with your purchase. Be sure to read and follow all safety precautions and keep instructions on hand for future reference. Set-up Guide: Check filter for any signs of shipping damage. If damaged, do not operate and return. Remove new cartridge from bag and rinse under cold water to remove carbon dust. Install cartridge as shown, (see complete instructions included with package). Biological cartridge holster and cartridge must face forward. Install filter on tank as shown (see packaging). Fill tank with water to 1" from tank's top edge. Plug power cord into household receptacle. Filter will begin to draw water from tank, pump water into filter through cartridge and return it to tank. Top off aquarium water level to outside bottom edge of the top frame.