Apeks XL4+ Stage 3 Regulator Set Din
Original price was: $1,100.00.$1,049.00Current price is: $1,049.00. inc. GST
The Apeks XL4+ Stage 3 DIN Regulator Set combines a compact first stage, primary second stage and matching octopus. Environmental sealing and a heat-exchanger design support cold-water use, while a lightweight second stage, Comfo-bite mouthpiece and Venturi control add comfort and adjustment.
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Apeks XL4+ Stage 3 Regulator Set Din
The Apeks XL4+ Stage 3 Regulator Set Din is especially well-suited for the technical exploration diver who prefers cold water climates. Compact and lightweight, it helps reduce jaw fatigue during long, cold dives. Designed with an innovative, over-moulded endcap in conjunction with the environmental diaphragm that helps prevent ice build-up.
The XL4 makes an ideal stage regulator and is also an excellent high-performance option for the technical exploration diver who is serious about maximizing functionality and minimizing weight.
1st Stage Features
- Breakthrough, innovative over-moulded first-stage endcap and environmental diaphragm helps 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 1st 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
- Compact machined 1st stage based on the expedition-tested Apeks DS4 platform.
2nd Stage Features
- Compact and lightweight 2nd stage improves comfort and helps reduce jaw fatigue on long-duration dives
- High-performance, pneumatically-balanced, lever-operated poppet valve
- Large, over-moulded, self-flushing and controllable purge button
- Ergonomic Venturi lever is easy to use and locate
- Flexible nylon braided hose has better cold water performance than traditional rubber hose
- Standard metallic hose connection for interchangeability
- Comfo-bite™ mouthpiece has a unique bridge that fits across the upper palate and does not require bite pressure to stay in place
- Re-useable mouthpiece clip makes it simple to change mouthpieces in the field
- Durable and flexible rubber exhaust tee provides excellent bubble diversion.
XL4+ Octopus
The XL4+ Octopus provides the same features and performance
- COMFOBITE – Patented Comfobite mouthpiece reduces jaw fatigue. Secures the 2nd stage more comfortably.
- PROGRESSIVE PURGE – Allows for precise airflow control when purging or filling an SMB.
- DIVER CHANGEABLE EXHAUST – Easy to change exhaust system to offer a choice between compact size or optimum bubble diversion.
- DOUBLE SWIVEL HOSE – Reduces tension on both ends of the hose to improve overall comfort.
- VENTURI LEVER – Disrupts the airflow inside the 2nd stage to prevent accidental freelows at the surface.
Technical Specs
| Brand | Apeks Dive Gear |
|---|---|
| Main model / configuration | Apeks XL4+ |
| Product type | Regulator |
| Regulator type | Regulator Set |
| Regulator connection | DIN |
| First-stage design | Over-balanced diaphragm |
| Environmental sealing | Yes, dry chamber |
| Cold-water suitability | Suitable for cold water |
| Breathing adjustment | Venturi lever |
| Mouthpiece | Comfo-Bite |
| Technical features | Freeze-resistant end cap; heat exchanger |
| Travel friendly | Compact lightweight design |
Additional specifications
- The Apeks XL4+ Stage 3 Regulator Set Din is especially well-suited for the technical exploration diver who prefers cold water climates. Compact and lightweight, it helps reduce jaw fatigue during long, cold dives. Designed with an innovative, over-moulded endcap in conjunction with the environmental diaphragm that helps prevent ice build-up.
1st Stage Features
- Breakthrough, innovative over-moulded first-stage endcap and environmental diaphragm helps 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 1st 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
2nd Stage Features
- High-performance, pneumatically-balanced, lever-operated poppet valve
- Large, over-moulded, self-flushing and controllable purge button
- Ergonomic Venturi lever is easy to use and locate
- Flexible nylon braided hose has better cold water performance than traditional rubber hose
- Standard metallic hose connection for interchangeability
- Comfo-bite™ mouthpiece has a unique bridge that fits across the upper palate and does not require bite pressure to stay in place
- Durable and flexible rubber exhaust tee provides excellent bubble diversion.
XL4+ Octopus
- DOUBLE SWIVEL HOSE - Reduces tension on both ends of the hose to improve overall comfort.
- VENTURI LEVER - Disrupts the airflow inside the 2nd stage to prevent accidental freelows at the surface.
Sources: Apeks 2027 buyer’s guide; Current product information.
We dispatch orders five days a week, usually within 1–3 days. Standard mainland Australian shipping is $20. Click & Collect from our Hallam store is free once your order is ready.
- Large or bulky gear: additional freight charges apply on top of standard shipping: large dive bags $30; long freediving fins $15; long spearguns $20. Scuba tank freight is shown at checkout.
- Rural, remote & offshore: rural means anywhere outside metropolitan areas. Carrier availability and additional charges may apply, including for island and territory destinations. Our team will contact you if an extra freight quote is needed.
The available delivery rate for your order is shown at checkout.
We offer a 30-day exchange on most unused products within Australia when they are in saleable condition with their original packaging and accessories. Please contact us with your order number before returning an item. Change-of-mind refunds are not offered; this does not limit your rights for faulty products under Australian Consumer Law.
FREE CLICK & COLLECT
Usually ready same day*
Select local pickup at checkout. We will email you when your order is ready. Please wait for your ready-to-collect confirmation before visiting, then bring your confirmation email and photo ID.
Collect from our Hallam store
Factory 4 / 56–60 Hallam South Rd
Hallam VIC 3803
*For items in stock at our Hallam store during opening hours, subject to order processing. Available-to-order and special-order items take longer. Collection is unavailable while the store is closed.
Can I collect my order from the store?
Yes. Choose free local pickup at checkout and wait for your ready-to-collect email before visiting our Hallam store. Bring your confirmation and photo ID. See Click & Collect details.
How do I choose the right size?
Use the product's size chart where available and compare your measurements with the guide for that brand. Sizing varies between brands and products. If you are unsure, contact our team before ordering and we can help you choose.
How do I check availability?
Select your required options, such as colour and size, to see availability for that variation. If an item is marked “Available to order”, check the estimated dispatch information. Please contact us before ordering if you need gear by a particular date.
When will my order be dispatched?
Orders are usually dispatched within 1–3 days, subject to stock availability. Available-to-order and special-order products may take longer. Delivery time is separate from dispatch time and depends on your location and the carrier. Read our shipping information.
Can I exchange an item if it does not fit?
We offer a 30-day exchange policy on most unused products within Australia, subject to eligibility. Contact us with your order number before returning an item. Read the exchange conditions and next steps.
Can you help me choose the right gear?
Yes. Call 03 9702 3694 during store hours or email [email protected]. Tell us which product you are considering and how you plan to use it.
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