I don't know about you but what I got is absolutely Grohe made in Germany. Big instructions. Grohe box. It couldn't be easier to replace, the instructions say you pull the handle, then hand screw then use a 17mm wrench to MAX. Tighten to 40Nm. If you don't have a torque wrench, 40 Nm isn't much (less than 30 ft-lbs). Maybe some of those reporting leaks are overreacting?
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