Aqua-Lung DA Stream Air in box #68333
Aqua-Lung DA Stream Air in box #68333 DW Stream Air One Stage, 1956-57. The DW Stream Air single stage regulator was the predecessor to the Mistral, but had what US Divers called “venturi action” for easier breathing. By 1957, the regulator bodies were one piece, no longer having the removable exhaust housing.
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