It's a BTE piece, I have them for $90 to fit the Glides. They thread into the case with a 1/8" NPT AN fitting since the BTE case (and Dedenbears) are already set up with threads there. With an OEM case you need to resize/tap the hole carefully for the fitting. All the stuff is included: tank/fittings/line/mount bolts. I have them for the TH-400's also but cost is a little more.
Steve Oldani
www.oldanimotorsports.20megsfree.com