For just me trips I use a 65L duffel bag for BP/W (or Hydros depending on my mood), fins, all scuba accoutrements, and clothes. Luckily I have never had this weight checked as it pushes 40 pounds.
Reg set, computer, lights, and travel CPAP go in a CPAP bag as "personal item". You could also probably get this waived as a carry-on / personal item as medical equipment does not count towards your baggage allotment.
YMMV
Reg set, computer, lights, and travel CPAP go in a CPAP bag as "personal item". You could also probably get this waived as a carry-on / personal item as medical equipment does not count towards your baggage allotment.
YMMV