1StopFilter's PMAX50 spa filter is designed to be compatible with a variety of spa systems. This filter is made with a pleated polyester filter media that provides excellent filtration and is easy to clean. The PMAX50 spa filter is compatible with many different types of spa systems, including Pleatco PAS35P, PMAX50, Filbur FC-0300, Unicel 5CH-35, SD-00779, PAS35P4, PMAX50-P4 filtration cartridges
If you have any concerns about compatibility, it is always best to consult with a spa professional or the manufacturer of your spa system before making any purchases.