Product review (5 stars): This is what I needed to stop the leaking of ...
This is what I needed to stop the leaking of my Grohe shower mixing valve. Not sure this project is for the beginning DIYer because I believe this kit services a lot of Grohe valves and requires careful examination of parts to know which ones are necessary for your valve. Mine happens to have a lot of parts and usually takes me about a half a day to complete by the time I do a complete disassemble clean all the parts by decalcify and degreasing, replace O rings, lubricate and reassemble. But I'm sure I do way more than a plumber would do as only a partial disassemble and 6 "O" rings are required to stop leaking. But doing a complete and thorough servicing I know I'm maximizing the life of the valve and service intervals.