Please allow my lazy cut and paste from a thread about 10 years old:
IMO the best method of connecting an inflator or inflator/regulator to your first stage is with a standard second stage (or Miflex) hose coupled with a screw on adapter with a quick disconnect. There are a few advantages to doing it this way. For one, l/p second stage hoses come in a large variety of lengths making routing much simpler. Additionally, should the hose become defective one only needs to change it out and reuse the adapter. See the picture below for examples of 3 male ends the quick disconnects attach to.
There are at least three sizes that most inflators or inflator/regulator fall into:
1) The "standard" <--- most inflators
2) Tusa DuoAir, ScubaPro Air 2, Atomic SS1.
3) Oceanic Air XS, Aeris Air Link, SeaQuest Air Source, Apeks Octo Plus, Zeagle Octo Plus, US Divers Air Mic.
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IMO the best method of connecting an inflator or inflator/regulator to your first stage is with a standard second stage (or Miflex) hose coupled with a screw on adapter with a quick disconnect. There are a few advantages to doing it this way. For one, l/p second stage hoses come in a large variety of lengths making routing much simpler. Additionally, should the hose become defective one only needs to change it out and reuse the adapter. See the picture below for examples of 3 male ends the quick disconnects attach to.
There are at least three sizes that most inflators or inflator/regulator fall into:
1) The "standard" <--- most inflators
2) Tusa DuoAir, ScubaPro Air 2, Atomic SS1.
3) Oceanic Air XS, Aeris Air Link, SeaQuest Air Source, Apeks Octo Plus, Zeagle Octo Plus, US Divers Air Mic.
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