Shopper Can this unit be connected to an Aqualung first stage?
Marilyn S Yes it can be connected to an Aqualung 1st stage.
JEFF D Yes, as long as the first stage has an available high pressure port.
CHRISTINE F I'm honestly not sure. Mine is hooked to a Mares first stage with no problem, but I have not used Aqualung. Sorry I couldn't be more helpful!!