I use the brita elite filter. its about 30$ for 2 of them and they last 6 months. https://www.amazon.com/gp/product/B01MU7973W https://www.amazon.com/gp/produc

I use the brita elite filter. its about 30$ for 2 of them and they last 6 months. https://www.amazon.com/gp/product/B01MU7973W https://www.amazon.com/gp/product/B01MU7973W