The ones from the VA came in a 2 pack bubble package so hard to tell. They have to be pretty close since the fit is snug when installing it.
I posted the info for US Veterans who frequent this site.
VA Service Connected; USAF 24 years, HAs since 1980
Current VA HAs:
Phonak Audeo B90-R RIC, ComPilot II, TVLink II
Phonak Naida S IX xP CRT w/ ComPilot & TVLink S
Starkey S Series iQ Directional RIC AP 312
Starkey AXENTII PDI DIGITAL HC
Starkey SA T9 CICs
Starkey SA C8 Full Shell (1st VA aids)
Widex SENSOs (Company Ins)
Zenith BTEs (AF Issued)