This works for about a month. If you use water on a daily basis, your filter won't even last a month! Also, the plastic piece that screws onto the faucet, between the bottom of that piece and the housing, water leaks constantly. It gets loose after a couple of months and water leaks everywhere, the back, the front, the sides. Also, where the filter attaches to the housing leaks too. This is a terrible product. I bought a cheaper metal one of another brand that worked much better. Save your money. The metal fittings won't make any difference because the water leaks out in other places. I bought 2 and they both did the same thing.