Aeris Elite Transmitter Compatibility

[snowieme1]

I recently bought an Aeris Elite unit with transmitter but the transmitter's thread is too large for First Stage.
What first stages are compatible with the transmitter? Also, I am interested if anyone has one for sale.

Thanks,
Snowieme1

[MikeC]

What first stage do you have?

[rescuediver009]

If the transmitter is too big you are putting it in the wrong port. Only HP ports will fit.

[snowieme1]

I have an old Sherwood Magnum first stage. There is only one HP port on the reg and no way to confuse it.