Apeks DS4 First Stage Regulator

Apeks DS4 First Stage: High-Performance & Durable

Divers of all levels favor the Apeks DS4 First Stage regulator. It works well for single tanks, twinsets, and stage bottles. This regulator is known for its durability, performance, and ease of use. Divers consider it "bombproof," even on deep dives.

The DS4 boasts an over-balanced design. Intermediate pressure increases more than ambient pressure as you descend. This provides a smoother breathing experience at depth. A diaphragm controls the gas flow, not a piston. This design is durable and reliable, especially in cold water.

The DS4 1st stage features an environmentally sealed dry chamber. This prevents water contact with the first stage spring, preventing freezing. The Apeks DS4 1st Stage is a reliable workhorse. 

Apeks DS4 First Stage has four intermediate-pressure ports and one high-pressure port. This well-respected regulator is a great choice. It offers high quality and long-lasting performance without a high price. While Apeks makes DS4s in DIN and Yoke configurations, we stock the more reliable DIN versions. 

Features Apeks DS4 First Stage:

• Diaphragm-type design: Ensures durability and cold-water performance.
• Over-balanced design: Provides smooth breathing at depth.
• Environmental dry system: Prevents water contact with the spring.
• Four medium-pressure ports: Offers versatility.
• One high-pressure port: For pressure gauge.
• DIN fitting.

Pros

• Durable and reliable
• Smooth breathing at depth
• Cold water capable
• Usable right side up or upside down
• Easy to use
• Polished chrome finish
• Widely available
• Easy to service

Cons

• Only one HP port
• No swiveling turret
• No 5th port option

The Apeks DS4 First Stage is also available as a DST model, which offers a swiveling turret with two HP ports. This is excellent for hose routing, whether you dive single tank, twinset, or stage bottles. The DST's 5th Port option also makes it ideal for sidemount diving.

SHIPPING:

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.

Please refer to our Shipping Policy and Returns & Refunds Policy for detailed information on delivery terms and returns.

Our current shipping rates are as follows:

• UK mainland orders £45 and over: FREE - DPD or alternative courier delivery*
• UK mainland orders under £45: £4.90 Fixed Rate - DPD or alternative courier delivery*
• Scotland Highland (inc. AB31+ Post Codes), Scottish Islands & Isle of Man: £9.90 Fixed Rate 
• Channel Islands & Northern Ireland: £14.90 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 (see Delivery Terms for BFPO at end of this page)
  
• FPO & APO Unfortunately, we are unable to arrange delivery to FPO/APO addresses
• PO Boxes - All our PO Box deliveries need to be signed for, therefore, unless prior arrangements are made with us, we do not deliver to PO Boxes.

*The dispatch days listed in our product listings refer to working days, excluding weekends and UK holidays. Products that need to be ordered from the manufacturer or distributor's stock, are temporarily out of stock, are subject to backorders, or are marked as Special Orders may take longer to dispatch. We will notify you of this once your order is confirmed.

INTERNATIONAL EXCEPTIONS:

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. They are only shipped outside the UK mainland after the freight cost is calculated based on the parcel's total weight, dimensions, delivery location, and the courier service used. We will let you know the cost 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

We offer a 30 day return for any product sold under our Returns & Refunds Policy 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 sales@dirdirect.com 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 i.e. Free shipping for orders £45 and above) the UK shipping rate 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
Mereside, Portland
Dorset, DT5 1FD 
United Kingdom

Please refer to our Shipping Policy and Returns & Refunds Policy for detailed information.