have changed to a likewise not endorse Blanco mixer tap the faucet. The Blanco faucet leaked after 6 years. After replacement cartridges they had another 3 years close and licked again. Can only hope that the new Grohe sink mixer is equipped with a high end cartridge and retain tight. Was surprised by the quick delivery of Grohe Sink mixer. All mounting aids were enclosed with the delivery. Assembly and fitting of the threaded tube in the Spültischbohrung is easy using the supplied plastic wheel from the top and right. The lock nut with the plastic plate has to be detained under the sink until the screw thread is tightened so positively but a second person by hand. The included fitting grease is sufficient for the lubrication of moving parts. Also the connection of the fitting to the Eckhähne is no problem. With some craftsmanship assembly can therefore even be made. Feel and operation of Minta are impeccable. Strong buy recommendation.