The Filbur FC1292 Pool and Spa Filter replaces Unicel part number C8409, Pleatco part number PA 90, and Harmsco part number H-8409. Also known as part numbers CX900-RE, FC-1292, PA90, H8409, and Hayward C-900, PXC95. The Filbur Pool and Spa filters are made of Reemay spunbound polyester pleated filter media with thermally bonded polyurethane caps and punched PVC pipe cores ensuring durability and consistent flow. All Filbur Pool & Spa Filters also feature Anti-Microbial technology, or Microban Technology, which prevents microbes, such as bacteria, mold, fungi, and mildew from growing or reproducing. Microban Technology is becoming an industry standard and is featured in all Filbur Brand Pool & Spa filters.