1.Easy care: Longer life without frequent replacement. The pool filter set contains 7 replacement cartridges of size 6, so you can keep your pool or spa clean for a longer period of time without having to constantly buy cartridges. This saves time and money and ensures continuous water hygiene. 2.Dirt removal technology: effective removal of impurities. The innovative dirt locking technology of the pool filter includes an increased number of impurities and thus ensures effective removal of dirt, deposits and other particles from the water. This results in improved water quality and a clean pool or spa. 3.BPA and nonallergenic: and hygienic water. The pool filter set is BPA and lead, which makes it for you and your family. The antigerm properties provide an additional layer of protection against bacteria and other microorganisms and thus contribute to increased water hygiene. 4.Easy to use: comfortable to use. Maintenance of the pool filter is very easy. You can simply rinse the cartridges with a water hose. For the highest standard of hygiene, we recommend cleaning every 2 weeks. The shatterresistant end cap, high absorption and chlorine resistance ensure a long life and reliable performance.