Have this fitting since about 1 year in operation and am completely satisfied. Unfortunately, we have very hard water and aerators calcify very strong. Since this does not solve completely lime after decalcification, one needs from time to time just once a new part. Since this aerator does not look as if it were a standard part, I have a question: Where can I get for this faucet aerators suitable as a spare part? Would be nice if someone could give me a hint
