The Bravura is an exact replacement for what's in the 31ft Sovereign
that I have. I put in the new High Profile toilet, not the Bravura, but have not tested it yet as I don't want to have to winterize the trailer again. If you have the center bath as I do, either of these toilets will fit. Actually in the center bath there is plenty of room to install just about any RV toilet you want. We had no trouble getting the new one in; however, getting the 30+ year old one out was a b----. Kinda had to use the sawsall to convience it to let go.