FILTER CARTRIDGE FOR INFLATABLE SPA: the filter cartridge keeps the water clean. It is easy to install and maintain. Simply clean it with a jet of water regularly. But when it remains dirty or stained after cleaning, it must be changed immediately so as not to damage the filtration pump. Our filters are not made of paper, but of polypropylene, which ensures quality and longevity.COMPATIBILITY: compatible with all our spas, these filters are installed on a cartridge base (base not included) which is the same for all spas.100% RECYCLABLE FILTERS: in order to minimize the impact on the environment, our filters have been redesigned to limit waste. They have been reworked to fit perfectly with our new range of spas, while remaining compatible with our previous ranges (bayonet, 2019 and before) by means of an adapter that you will only need to obtain once. Of course, our filters remain 100% recyclable.PRODUCT FEATURES: Pack of 4 filters, compatible with all our Mspa inflatable spas, 90-ply polypropylene filter, Easy to change, More efficient, thanks to its ingenious structure, filter dimensions: 10.8 x H 6.7cm, brand: Mspa.TIPS: Be sure to unplug your spa before handling it. It is advisable to clean the cartridge regularly for a longer life of the filtration system. It is recommended to change the filter after 150 hours of operation. Any damaged filter must be replaced as soon as possible, otherwise your spa may be damaged.