Needed this exact part and Wayfair sent in days! All other sources, from national to local plumbing supply stores, it would have been a minimum two week's wait.

The Grohe website [AI?] gave me the wrong part. Not impressed. Even better, when I FINALLY found the correct part number [on my own], the Grohe website did not even list it.

Unfortunately I was not able to repair my tap with this cartridge as it was not mentioned that a special tool was required to remove the original cartridge. As well I am not sure if this even looks the same as the original one since we were not able to remove it.

have it for replacement in case it needs it. looks similar to original

For a very expensive cartridge it took me 5 tries to have it not leaking. I followed video and written instructions and yet unless the seals were perfectly seated it leaked when I put on the supply line valves on. I was ready to call to return the cartridge, when I tried on the fifth time it worked!