Apeks DS4 First Stage Regulator
The Apeks DS4 First Stage is a workhorse with years of tested and proven experience preferred by the most demanding technical divers. Ideal for twinset configuration.
Dispatched in 1 to 2 days
The APEKS DS4 First Stage: High-Performance & Durable
The APEKS DS4 First Stage regulator is popular for divers of all levels, whether diving a single tank or twinset, or using it on stage bottles.
Its reputation among divers is that it is “bombproof”, renowned for its durability, performance, and ease of use, even on the deepest dives.
The DS4 features an over-balanced design, which means that the intermediate pressure increases more than the ambient pressure as a diver descends, which results in a smoother breathing experience at depth.
As a regulator that uses a diaphragm to control the gas flow instead of a piston, it is often regarded as more durable with more reliable performance in cold water.
The DS4 1st stage also has an environmentally sealed dry chamber preventing water from coming into contact with the first stage spring to prevent freezing.
In summary... The Apeks DS4 1st Stage is a reliable workhorse with its 4 intermediate-pressure and one high-pressure port. It’s a well-respected regulator in the diving community and a good choice for divers looking for a high-quality regulator that will last many years without breaking the budget.
While Apeks manufactures the DS4 in DIN and Yoke configurations (like its other first stages), we only keep the more reliable and robust DIN first stages in stock and supply Yoke per demand.
Apeks DS4 features:
- Diaphragm-type design for durability and cold-water performance
- Over-balanced design for smooth breathing at depth
- Environmental dry system to prevent water contact with spring
- Four medium-pressure ports and one high-pressure port
- Available in (recommended) DIN and Yoke (A-Clamp) configurations
Apeks DS4 Pros:
- Durable and reliable
- Smooth breathing at depth
- Cold water capable
- Can be used in right side up or upside down for HP port positioning
- Easy to use
- Finished in highly polished chrome
- Widely available
- Easy to service
- Finished in highly polished chrome
Apeks DS4 Cons:
- Only 1 HP port (no option for transmitter + SPG combination)
- No swivelling turret
- No 5th Port Option
The DS4 is also available in a swivelling turret form with two HP ports as the Apeks DST model, which is excellent for hose routing whether you're diving single tank, twinset or using it on stage bottles. The 5th port option of the Apeks DST also makes it ideal for sidemount diving.
We aim to dispatch all in-stock items within 2 working days but will inform you of approximate delivery times should any item on your order be out of stock or on supplier backorder due to current manufacturing or transport delays caused by global shortages and/or impeded production.
Our 2022 shipping rates are as follows:
• UK mainland orders £45 and over: FREE - DPD Delivery
• UK mainland orders under £45: £4.90 Fixed Rate - DPD Delivery
• Channel Islands, Isle of Man, Highlands & Northern Ireland: £14.9 Fixed Rate
• European Union: £13.90 + 5% of order value (maximum £30)
• Rest of the World: £19.50 + 8% of order value (maximum £55)
• BFPO Post Codes: £20
For international orders containing weights, cylinders (excluding suit inflation bottles) and Suex scooters please contact us in advance before placing your order.
These products are not included in our global max-capped shipping rates and are only shipped outside of UK mainland after freight cost is calculated based on total weight, dimensions of parcel, location of delivery and the courier service used. We will let you know what this cost will be before processing any order.
All cylinders we ship within and outside of UK mainland are filled and tested on site before being emptied for dispatch. Cylinders shipped outside of the UK will be empty and will also have their valves removed, requiring reassembly after you receive delivery. Twinset manifolds and bands will also be removed and dispatched together with the cylinders for safe global shipping.
RETURNS & REFUNDS
Please contact us before any return with your order number and date details. Receive our Returns Authorisation Form and instructions and enclose them with your return to expedite a refund. Detailed information is available in our Returns & Refunds Policy.
Email us at firstname.lastname@example.org or call us on +44(0)1305 824 555
Note that all returned items are shipped at the customer's own risk and remain the customer's property until received by Underwater Explorers, so please ensure they are packaged well and use reliable postal services with tracking facilities. The
goods will be inspected on arrival.
Return postages are at your own cost and our outbound shipping costs (if items are sold with integrated basic shipping charges) may be deducted from any UK mainland refund unless linked to a fault/defect claim.
Please contact us with your order number and name before sending any returns to:
Underwater Explorers – Returns
Unit 1, Maritime Business Centre
Dorset, DT5 1FD