WHAT??? No, You get that guy back, and you say...............WHY did you not ask me about this? Was there some reason your "old" sink did not work? Did he damage it it in some way? You stomp your foot, and you tell him you will provide a new sink, and I don't care if he has to eat the counter tops to accomplish that. Completely unacceptable, minus any discussion with you. For ANY reason, other than a prior discussion as to why your old sink could not be re used. Then make him find one from Franke, Moen, or wherever that fists, and meets your approval. Yes it can be changed, with no damage.

That said, I don't know why you want a dated "double" : )

That is 18 gauge SS vs your previous sink’s thicker 16 gauge, which it sounds like you realize. My post is for all the people on this forum who say (and say pretty frequently), “but Consumer Reports says 18 gauge is just as good as 16 gauge”. I curse CR just for that statement alone, because people believe it so entirely.

My Franke sinks are 18 gauge stainless steel...

Make sure your new sink has soundproofing pads incorporated into it regardless of the gauge. That will help a lot with the sound. I saw a tip elsewhere that someone took heavy bungee cords and wrapped them around the sink underneath, and this person claimed it made the sink seem more hefty. However, I agree with others that for the contractor to select a new sink without your approval is completely unacceptable. I have spent months researching for my new sink, and it is one of the most important purchases I plan to make. Check out Havens Metals if you want something really nice.

As Jan said this was not approved by you so get the contractor back take out the sink you hate and put in the one you want he bites the extra cost.

There are also aftermarket products to sound-dampen a sink. I’ll link to one called Dynamat, but there are others that can be found by googling. Quite simple to do, and fairly effective.

https://www.amazon.com/gp/product/B00020CAVA/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1

Have to agree. If it wasn't in your signed contract then he owes you YOUR sink back.

https://www.houzz.com/discussions/sink-brand-dsvw-vd~623995

last comment in thread. Cosmo sinks?

Is this the same as MRDirect sinks?

Nosoccermom - now I am confused. The OP in the link you posted has the same name as this OP. But your linked thread is from 2013. I can’t figure that out.