Had a few different people ask for them.....
So I knocked out a few!
These fit the Geo2+, Etek 3+, and Ego10/11
They are threaded for 1/8" NPT fittings
$20 ea + $2.50 S&H
45 Reg Testers
I do not have any gauges for these right now... possibly in the near future
I tested these in the pictures above. a POPS ASA will purge and eliminate the need for a full reg tester kit (like in my pictures)