My black got demolished last year by a rear dual blowout, along w/ all the plumbing, dump valves and all.
I went to my local RV dealer for advice. They called Rexall and got the info for the original OEM tank. As it turned out, I got a new tank from the same tank mfg that made all the original tanks for Rexall (and many others) It came out of the same mold that the original came out of. But I had to locate and cut the 2" vent hole, and the 4" turlet hole. It was a time consuming job, but it turned out great, and the whole job cost me less than $1,000 for the $6800 insurance estimate.
