Replacement Models: Compatible with Delight, Premium, Elite, Concept for Aurora, Mont Blanc, Mono, Alpine, Camaro, Nest, Soho, Baikal, Starry, Bliss, Silver Cloud. Perfect for all Mspa models from 2020. Home inflatable pools and spa hydrotherapy facility pools. Hot Tub Filter Cartridges Size: Size: 8cm x 11cm in diameter, easy to clean filter cartridges, can be used multiple times and changed every 4-6 weeks High Quality Material: High flow ABS core and thick filter cloth form a sturdy body, has strong capacity dirt absorption, high temperature resistance and corrosion resistance. Powerful Filtration Performance: Hot tub filter cartridges, innovative "Dirt Lock" technology allows fabrics to hold more contaminants than ordinary fabrics. This filter can effectively reduce hair, leaves, dust, sediment, sand. Long Service Life: Uniform, high-performance clover fabric makes it easy to capture and remove stains, so you can easily clean the filter after use. Improved lifecycle