Before I return the expensive Brita filter buy me (60 euros a year) I have come every year with Evolve only 22 Euro. And the cartridge keeps two months. Is just as well, no lime present in water hardness 4 like me the kettle is scaled up within two weeks. Now nothing to see. So as well as Brita. Who saves has access here .. Fits 1a in Brita. highly recommended.