They were very reliable, they were also large in size. I haven't seen any around here still in service, that would be who may need some spare packs.

Larry I couldn't find the MAPP, but I know it used to have one when inservice. I installed it, well, many years ago.

Not holding out a lot of hope, finding someone needing this, or the parts. Just trying to help out a customer.


Retired phone dude