Got this DI filter in the mail yesterday from Aquatic Life. It is severely bent on 2 sides probably from the vacuum seal. They say it is Ok to use even though it is distorted. Should I return or keep?
I would probably be annoyed with something I bought new coming to me like that, but I agree with what others have said . As long as the plastic isn't cracked and it will fit into and seal properly in your filter then it won't hurt anything.