Sorry for mobile link but you get this and it works
http://m.ebay.com/itm/121148096066?nav=SEARCH
IMO if you are going to get into glass it would make everything painless to have a few adapters. Really that's the only one you need as it converts all 18mm female pieces to 14mm, and it also turns 14mm male joints into 18mm male joints. $10 is not bad for a reducer! One more package to look forward to in the mail, and your total won't even be $50.
18 to 14 really opens a lot of doors for you!
Sorry, Quetzalcoatl, I never replied back in a timely manner, I apologize.
Well, long story short, I bought the PNWT, the D020, and the reducer...yeah I'm not visiting this thread again, cheap my ass! Anyway, thank you very much for your advice, I appreciate it.
I haven't seen so many good reviews on a product (D020) here since the Solo, so I knew it would be legit, albeit I don't hang out on here as much as I used to so my experience here is limited.
Thank you all who helped with your testimony!