http://www.calclassic.org/Regulator/aqualung.html
Try this site to answer your questions. The DA Aqua-Master was the work horse mid line double hose for USD for all of the 60s and early 70s and went intomproduction I think in the late 50s. I am not certain on all that. The above link is good reading. N
Try this site to answer your questions. The DA Aqua-Master was the work horse mid line double hose for USD for all of the 60s and early 70s and went intomproduction I think in the late 50s. I am not certain on all that. The above link is good reading. N