Need Bubble Counter For Concoa 412

Farmhand

Prolific Poster
Apr 7, 2010
46
4
8
Kingsburg, CA
In 2010 I purchased a rebuilt Concoa 412 Dual stage regulator for S&KGray using this forum and ran the regulator for 6 months. I needed to break down the aquarium, so I removed the bubble counter to keep it safe in storage. Well the bubble counter is safe aright, where ever it is???
Sam(S&KGray) noted in our correspondence that should buy a JBJ style Bubble Counter with 1/8" NPT female thread.
Based on this and the attached picture, what do I need to purchase?
Thanks

Bubble Counter.jpg