Aqualung DA Aqua-Master New in box #251828
The Aqualung DA Aqua-Master is a renowned double-hose scuba regulator produced by U.S. Divers from 1958 to 1973. This unit, bearing serial number 251828, was likely manufactured around 1966–1967. This estimation is based on serial number ranges and design features documented in vintage scuba equipment references .
Key Features of the DA Aqua-Master (circa 1966–1967):
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Design: Two-stage, unbalanced regulator.
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Finish: Transitioned to a shiny chrome finish around this period.
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Yoke: Equipped with a longer yoke to accommodate accessories like the “banjo” pressure gauge adapter.
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Mouthpiece: Curved black mouthpiece introduced in the early 1960s.
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Clamps: Utilized black nylon hose clamps.
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Label: Rectangular metal plate with the U.S. Divers logo and serial number.
In 1970, U.S. Divers updated the DA Aqua-Master with a round decal label and began stamping serial numbers on the yoke side of the canister .
Collectibility and Value:
A DA Aqua-Master in new-in-box (NIB) condition is considered a rare find among collectors. While typical used units may range from $300 to $600 USD, a pristine NIB example can command a significantly higher price, perhaps $700 USD especially if it includes original packaging.
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