I did call Oceanic, which I found out had been bought out many years ago. I talked to multiple people at the number listed on the Oceanic site and found out that I know more about their products than they do, which is slim to none. Anyway, I did find a generic bulkhead that has fixed my problem. It seems that Oceanic tanks and products are a thing of the past. From what I understand they do not make them anymore. I called all over the country to Oceanic "dealers" who basically said the same thing.
Thanks for your reply. I was very frustrated, especially after calling "Oceanic", but my somewhat LFS
(50 miles away) had the fix.