marineland bulkheads - are they different?

[intarsiabox]

Originally Posted by corpusse

Brand new bulkheads. The pipe is already glued in so I can't inspect them. The holes looked fine I didn't closely inspect them but I noted they were drilled nicely when I first looked at the tank.

I am assuming then the bulkheads are a slip/slip design so could it be the glued area around the pipe leaking? The rubber is on the inside of the tank and the correct size of bulkhead were used?