Where can I buy a johnson tee air gap?

Where can i buy a johnson tee air gap?
Sorry TY!
Johnson Air Gars are like Draunage Systems, Ya don't buy them, Ya build them, (see image) Good luck, Tom

sorry ty!
Johnson air gars are like draunage systems, ya don't buy em,. Ya build em, (see image) good luck, tom

Thanks tom but the tee that connects copper to abs that
Vents out of wall?

thanks tom but the tee that connects copper to abs that
vents out of wall?

What vent out the wall? What you see is what you got, Think of the copper as a hose and the distance between the copper and the trap as a air gap, The only vent involved should be the one venting the trap,
Cheers, Tom