Grohe 65818000 waste set Chrome

This is not made for a vessel sink... as recommended when I purchased a vessel faucet. My vessel sink sits on top of a granite countertop, so, by this design you would have to seal between your sink and vanity (no biggie), but, you are essentially using your sink and vanity as a pipe? Really!? Called and was told, "that's normal." Attempted return was denied due to the 30-day policy. Buyer beware! Further to advertise this drain just because one purchased a vessel faucet, comes with all kinds of problems... the drain depends on the application and constraints... not just a blanket, use this drain (that is terrible by design... in my opinion, it's made for an integrated sink or a partially submerged vessel faucet. Shame on this site for this recommendation.