Bottle filler parts

[Frodv]

Hi, I'm looking for som parts for my bottle filler project, and was wondering if anyone here knows where I can get it.
I'm looking for a rubber/silicone bung or something that makes an air tight seal around the bottle neck when I fill.
It is offcource a counterpressure bottle filler I'm making.
I have noe tube of bung that goes into the bottle, but it is such a tight fit that the bottle follows the filler back up when I lift it.
The thing I need must therefor make a tight seal, but not get stuck to or in the bottle.... Can anyone please help me.

 

[uncleben113]

What if you use one of those gaskets for an airlock hole on a bucket lid? I wonder if that would seal if you crammed one on your bottling wand. Otherwise, they make bungs meant for 12oz bottles that would likely work.

 

[cctopcat]

I use one of these, upside down. Works great for a "BierMuncher / We no need no stinking beer gun" type filler. YMMV.


Universal Carboy Bung Drilled

 

[uncleben113]

I use one of these, upside down. Works great for a "BierMuncher / We no need no stinking beer gun" type filler. YMMV.

View attachment 414237
Universal Carboy Bung Drilled

Genius!