Hey, after two years of experience with a 70Euro (German) fitting that licked now and it was to get no more spare parts, I bought this proprietary brand at a reasonable price at Amazon. Insanely good installation. If you know the tortures at the cheap faucet, this is now a poem. Continuous brass tube is inserted through the tap hole, three rotatable connection hoses where twists nothing !! Check valve, and more. Not go away and get renewals etc.! The smooth running of the single-lever mixer is fantastic. So far, only praise. Let's see if this faucet is now more dense than my others. What I have noticed positive, the detailed description even with "Nm" disengagement torques information !!!