Apeks Nitrox DB4 1ST Stage Review

1,137 views · Published 27 November 2018 · 2:56 · Indexed 26 October 2026

Channel: Simply Scuba · 2018 · Science & Technology

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Apeks Nitrox DB4 1ST Stage Review
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 The Apeks Nitrox DB4 1st Stage is a tough compact first stage made for the XL4 and is a Nitrox clean first stage perfect for diving with higher Oxygen percentages for accelerated decompression.  

O2 clean this 1st stage will be fitted with an M26 thread and is manufactured using special greases and O-Rings suited for O2% higher than 40%. To change it to a G5/8 thread you'll need an M26 Adaptor.

- Compact machined first stage based on the expedition tested Apeks DS4 platform.
- Breakthrough, innovative over-moulded first-stage endcap and environmental diaphragm help prevent ice build-up that can cause first stage free flow in extreme circumstances. Also protects the first stage from impact damage.
- Large surface area heat exchanger diaphragm clamp helps increase the gas temperature inside the first stage, resulting in improved cold water performance.
- Unique over-balanced diaphragm design – as the diver descends, the over-balancing feature allows the medium pressure gas in the hose to increase at a faster rate than ambient. This results in superior performance at depth.

::Contributors::
- Simply Scuba
- Apeks

::Team::
Written By: Mark Newman
Presented By: Mark Newman
Filmed By: Shaun Johnson
Edited By: Shaun Johnson

::Hashtags::
#apeks #db41ststage #productreview #apeksreview #simplyscuba
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