Danner 02211 PM1000 12-Inch by 12-Inch Mechanical Pond Filter Highest quality materials used to make high-end aquatic supplies Provide the best environment for your aquatic life with Danner products 100% designed and made in the Usa with quality goods Suitable for Small to medium ponds 12-inchx12-inch Filter Box with locking handle Carbon and Polyester Media for mechanical/biological/chemical filtration Connects to intake side of pump Complete with 3/4-inch I.D. Tubing and Fittings