Atomic Aquatics B2X Scuba Diving Regulator

The B2X combines a coated brass first stage with titanium second-stage components. Automatic Flow Control adjusts the airflow as depth changes, while the rapid adjustment control and Comfort Swivel add practical comfort and handling features to the black-finished setup.

Features and benefits

Balanced gas delivery. The balanced Jet Seat piston design helps manage the supply to the second stage as diving conditions change.
Balanced second stage. The balanced valve helps maintain a consistent inhalation response.
Automatic Flow Control. The regulator adjusts flow characteristics as depth changes, with the rapid adjustment knob available for manual tuning.
Environmental protection. The sealed first-stage chamber helps keep water and contaminants away from its working mechanism.
Reduced hose pull. 316 stainless Comfort Swivel with black PVD coating allows movement at the hose connection for a more comfortable hold.
Connection options. 2 HP ports and 5 on swivel cap LP ports support the stated gauge and hose configuration.

Setup and compatibility

Connection: DIN, Yoke. Choose the fitting that matches your cylinder valve and its pressure rating.

Technical Specs

Atomic Aquatics B2X Scuba Diving Regulator technical specifications
Brand	Atomic Aquatics
Main model / configuration	Atomic Aquatics B2X
Product type	Regulator
Regulator type	Primary Regulator
Regulator connection	Din, Yoke
First-stage design	Balanced Jet Seat high-flow piston
Second-stage design	Pneumatically balanced
High-pressure ports	2
Low / medium-pressure ports	5 on swivel cap
Environmental sealing	Yes, listed sealed configuration
Breathing adjustment	Automatic Flow Control; rapid adjustment knob
Nitrox / oxygen compatibility	Up to 40% oxygen, non-dedicated EAN use
First-stage materials	DLC-coated chrome-plated brass
Second-stage materials	Titanium components
Hose	316 stainless Comfort Swivel with black PVD coating

Additional specifications

Meta description	Discover the Atomic Aquatics B2X DIN Regulator with DLC protection, effortless breathing, Comfort Swivel and premium titanium components.

Experience exceptionally smooth breathing, premium comfort and outstanding durability with the Atomic Aquatics B2X DIN Scuba Diving Regulator. Building on the performance of the renowned B2, the B2X introduces Atomic Aquatics’ advanced Diamond-Like Carbon coating for superior protection in demanding marine environments.
An exclusive balanced Jet Seat high-flow piston delivers stable intermediate pressure and dependable airflow, even as cylinder pressure falls. The rotating first-stage swivel cap provides flexible hose routing, while the secure 300-bar DIN connection creates a compact regulator setup ideal for recreational and advanced diving.
The pneumatically balanced second stage provides smooth, consistent breathing across changing depths and cylinder pressures. Atomic Aquatics’ Automatic Flow Control automatically adjusts airflow throughout the dive, reducing the need for constant manual adjustment. A separate Rapid Adjustment Knob allows the diver to detune the second stage when required, helping prevent unwanted free flow during entries or demanding surface conditions.
A patented Comfort Swivel allows the hose to move naturally with the diver, reducing pulling at the mouth and helping minimise jaw fatigue. Combined with the dual-silicone comfort mouthpiece and low-effort exhaust system, the B2X delivers excellent comfort during both relaxed recreational dives and longer underwater adventures.
Diamond-Like Carbon coated brass first stage for exceptional wear and corrosion resistance
Balanced Jet Seat high-flow piston delivers stable, reliable airflow
Pneumatically balanced second stage provides effortless breathing at depth
Patented Comfort Swivel reduces hose pull, binding and jaw fatigue
Titanium second-stage components offer excellent corrosion resistance
Seat Saving Dynamic Orifice helps protect the low-pressure seat during storage
Rotating first-stage swivel cap supports clean, comfortable hose routing
Two high-pressure and five low-pressure ports provide flexible equipment configuration
Dual-silicone mouthpiece offers a comfortable, secure bite
300-bar DIN connection provides a streamlined and secure cylinder attachment
Suitable for non-dedicated Nitrox mixtures up to 40% oxygen, subject to the manufacturer’s gas-quality requirements
The B2X is an excellent choice for divers who want flagship-level breathing performance with the strength and reassuring feel of a precision-machined brass first stage. Its advanced DLC finish, titanium second-stage components and proven Atomic Aquatics breathing technology create a regulator that is smooth, comfortable and engineered for years of reliable diving.

Based on Atomic Aquatics product information.

Regulator Connection	Din, Yoke

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.

Read our full shipping and delivery information →

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.

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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.

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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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