Need new backwash Valve American Titan SS

[Phoenix]

Hello all
I'm looking to replace all my multiports and backwash valve. Unfortunately All my pool sources have explained that nothing will fit the filter anymore? Its 8 inch on center and I have found a couple of valves that say they do but like I said I have been told otherwise. Does anyone know what will fit? Slide will work also.
Thxs
Phoenix

[Watermom]

Hi, Phoenix. Unfortunately, I can't help with this one but hopefully someone will be able to. I just wanted to welcome you to the Pool Forum!