Whilst the filter high-quality isn't very as good as being the one from Grayl, they do last for nearly two times providing the UltraPress (I continue to feel that Grayl is being also conservative). Also, the water quality is extremely good and tastes great, regardless if drinking from dirty water https://filterforalkalinewater98764.bligblogging.com/20986170/everything-about-happiness-is-a-state-of-mind