Not what you asked for so feel free to ignore me. I wouldn't put another redsea tank in my home, I don't care what improvements they've made. They've denied the problems they have and anyone who wants to discuss the failures gets banned from the RS Facebook page. Their behavior and mishandling of the situation with all the failures along with lying about it all is reason enough for me not to ever purchase another RS tank. Add to that I've had a Gen 2 reefer 170 and Gen 2 reefer 300 fail. I'm not playing three strikes and out, two is enough for me.
I highly recommend you spend a little time researching all the failures and how red sea has mishandled the situation before deciding spend thousands with the company. Redsea has the best marketing department in the industry IMO but that quality doesn't extend to their tanks regardless of the BS they spew and the supposed improvement.
If you want to ignore all the warning signs and believe RS has fixed the problem then I wish you luck but caveat emptor.
FWIW the cause of the failures is the two part silicone they use not the tank designs.