Tank Sealer

I bought a tank from Tanks Inc. It would fit, looked just like my tank except for one small detail, the filler tube didn't fit. I sent it back and Never got my money back. I think I'll fix what I have.
Ouch. I'd have my *** kicking boots on by now. I bought a tank for my dart and it was all of $75 shipped. Probably Chinese, which I hate, but better than a leaker I guess