Future Way 4-Pack C3030 Pool Filter Cartridges for Hayward SwimClaer C3030, C302. Future Way 4-Pack C3030 Pool Filter Cartridges Replacement for Hayward SwimClaer C3030, C3025, C3020, C580E, Replace Pleatco PA81, Hayward CX580XRE, 325 sq. Compatible with Hayward Swim Clear C3030/C3025/C3020, Star-Clear C580E pool filter. Replacement for Hayward CX580XRE, Pleatco PA81/PR81-4/PA81-PAK4, Unicel C-7483/C-7483-4 and more. All manufacturers’ names and part numbers are used for compatibility information only. With an outer diameter of 7”, inner diameter of 3” and a height of 19-3/4”, our filter cartridge can be easily installed in your filter without worrying about leaks or compatibility issues. Made from ultra-fine and heavy-duty paper with more pleats, it maximizes filtration efficiency, easily removes debris, and keeps your pool clean at all times. This filter cartridge features spunbond polyester and a strong inner core, making it capable of withstanding high-pressure water flow and durable enough to be a worthwhile investment for your pool. We recommend cleaning the pool filter cartridge once a month to maximize its service life, ensuring that your pool remains clean and healthy.