Keep your hot tub crystal clear with this high-quality filter cartridge from POOLPURE. Designed to fit Filbur FC-2812 and Sundance 6540-502 models, this filter is a must-have for any hot tub owner. Made from durable materials, this filter is built to last and will keep your hot tub water pristine for longer.Perfect for hot tubs of all sizes, this filter cartridge is easy to install and maintain. With a range of compatible models and a trusted brand, you can be sure that you are getting the best possible filter for your hot tub. So why wait? Upgrade your hot tub today with this high-quality filter cartridge from POOLPURE!