We have been using zero water filters for many yrs now. They remove more contaminants than others we have used. Coffee tastes really good as well as the water itself!
These come quickly and give you at least some peace of mind that you’re putting less chemicals into your body through your drinking water. We only use filtered water from Zerowater for cooking and drinking.
My tap water has a rating of around 470. This filter works perfectly to bring it down to zero for a while, but after almost 6 days, my 10 cup pitcher needs a replacement. We use the filtered water for hot drinks and sometimes ice water, so our use isn't extravagant. I was hoping the filter would last longer, but given our extreme hard water I understand why it doesn't last long.