Ok, what we have here is an Enano GonG (glass on glass bowl....yeah?). Its what is stuck in the joint to the far right. Its just an Enano bowl on one end and a 14mm (or they make 18mm also) ground glass joint on the other end.
Its stuck into a carb'd adapter. The carb is where the plug is on the adapter.
Glass adapters may be had cheaper, but these are of very good quality.
https://oregonglassblower.com/CARB-ADAPTERS_c52.htm
So, you draw and then pull the little glass plug to clear the rig with no rebound from water falling back down in the rig (rebound will often pop your load out of the bowl otherwise) and without having to pull the GonG out every time.
The glass is an FC-188 kind of Mobius Matrix Ion from China. See DHGate.com and search for "FC-188" or "stevenlmz79" as the seller's store.
Ah, here...easy peasy:
https://www.dhgate.com/product/mobius-glass-19cm-tall-mobius-matrix-sidecar/390413782.html
For 18mm joint version its an FC-187.
Put your Enano heater on the gong, draw, pull carb and clear, exhale and put the plug back in the carb hole, draw again.
Works wonderfully and carb'd adapters are kind of handy in general, IMO.
Hope this was somewhat helpful.