【Mspa Jacuzzi Tub Cartridge】Size: 10.6 x 6.7cm (4.2" x 2.6") for Spa brand MSPA models, for Tuscany only, for Camaro, for Silver Cloud, for Tekapo, for Mono, for Compatible with Reve, Baikal, Lite Nest and Star Aurora, only for inflatable pools after 20 years 【Mspa Spa Accessories】Effectively remove dirt from swimming pools and hot tubs, keep water clean, and change less water 【Impurity removal】: The massage pool filter is made of polyester paper, which is easy to clean and durable. Dirt is easily washed away. MSpa filter element prevents secondary pollution [EASY TO CLEAN]: Just remove the filter from the pump and rinse off the dirt with a garden hose. Be careful not to rough clean or use a high pressure water jet as this may damage the filter paper [Easy to Replace] Replace with a new filter every two weeks for best results. It can be easily replaced by placing it on the filter holder thanks to the practical soundproof cover