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Nitrox DS4 1st Stage

£161.00 RRP £190.00 SKU: 72992

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Apeks Nitrox DS4 1st Stage

Nitrox DS4 1st Stage

£161.00 RRP £190.00 SKU: 72992

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Nitrox DS4 1st Stage

£161.00 RRP £190.00 Out Of Stock

Brand: Apeks

Model: Nitrox DS4 1st Stage

SKU: 72992

Please note: This item cannot be shipped outside the European Union - learn more

The Apeks Nitrox DS4 1st Stage is a compact nitrox clean first stage for divers who use Nitrox levels over 40%.  Oxygen clean greases and O-Rings inside mean you can use this up to 100% O2.  The DS4 is a compact over-balanced 1st stage that is at home in both cold and warm water. Stripped down the DS4 has four low pressure ports and one high pressure port making it great for a single cylinder setup or for twins or a stage cylinder, the Nitrox version will be fitted with a M26 thread.

Nitrox equipment will be supplied in Europe in accordance with the EN 144-3 and the EN13949 which states that equipment sold in CEE (European Community) countries over 21% and up to 100% will be manufactured with the special M26 fitting.  These are specially cleaned and assembled in Apeks' purpose built class J (10,000) clean room using oxygen safe components and lubricants.


 To change it to G5/8 thread you'll need an M26 Adaptor.


Weight - 0.65kg

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Apeks Nitrox DS4 1st Stage - Features

FeatureProduct Specification
Adjustable Inhalation
?This feature allows the diver to adjust the inhalation setting from the set level and increase the effort required to open the 2nd stage valve to deliver air.
Adjustable Venturi
?The venturi control affects how air flows in the 2nd stage. In it's positive position the flow of gas creates a vacuum against the diapragm, helping to open the valve. In it's negative position it will divert gas back against the diaphragm helping to close the valve. It is basically used to help prevent free flowing.
Cold Water Rated
?Cold water has adverse effects on regulators and can cause some to freeze so each regulator combination must be tested during manufacturing for their performance in different water temperatures.

Cold water is defined by EN250 as below 10°C. If a regulator combination cannot meet the performance standards below 10°C then they are only suitable for warm waters.

EN250 / (EN250A >10°C)
To pass the regulator must provide at least 62.5 L/min of air at 50M depth above 10°C.
Cold & Warm Water
Environmentally sealed
?Environmentally sealed 1st stages offer greater protection against freezing when diving in cold water (below 10 degrees C)

Scubapro have a new method of cold water proofing their first stages called the eXtended Thermal Insulating System or XTIS which still allows water into the first stage but the internal parts that come into contact with the water are coated to prevent ice from forming.
High Pressure Ports
?High pressure ports supply the pressure gauge and wireless transmitters for dive computers
Low Pressure Ports
?Low pressure ports supply the 2nd stages and inflator hoses
Service Information
?All regulators need to be serviced to keep them in working order as the parts inside them age and wear over time and with use. Most regulators need to be serviced once a year or after 100 dives with normal recreational use to replace parts and re-balance.

Some regulators use more modern materials or mechanisms that allow them to extend the servicing interval that can save you some money in the long run.
1 Year - 100 Dives

We offer free standard delivery on orders over £50.

Standard delivery is £3.70 for orders under £50. You will receive your order 2 - 4 days from the date of despatch.

Next Working Day is £6.50.

For Christmas delivery information, click here Learn more about delivery

We hope you will be completely satisfied with any product purchased from Simply Scuba.

However, you can return it for any reason within 28 days from the date of despatch for a full refund (less postage costs).

For Christmas returns information, click here Learn more about returns

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