does it work? you say you just upgraded, is it new? It looks like edpm rubber and despite the slight scuffing of the surface from what I assume is use it shouldnt cause issues unless there are slices and such that could harbor bacteria.
Thanks. I purchased slightly used. I haven't reassembled and leak checked yet. 5 hours in PBW didn't clean it up. I'm more concerned with sanitation than whether it's liquid tight.
It appears from the pic that there is some degradation of the gasket. I believe I see pits and cracks. I would replace it if it were mine as they can be found for less than $15.