glass lowering piece?

So, I have been having a blast making solvent less, and my glass collection is building. Does anybody know of any glass pieces to lower the banger on a dab rig? Everything just raises it, and the "drop downs" are actually level. Help would be greatly appreciated. Picture to show what I am talking about, but I don't use it this way lol.

yes I know I have a lot of cleaning to do. Was a busy day yesterday