Current figures use successful checks within 24 hours, for GBP listings in your selected destination. Cheapest and average use confirmed in-stock prices for one matching option; delivery and taxes are excluded. Retailer counts include shops with a checked price even if out of stock. Unknown stock is not counted as in stock.
The low is the lowest in-stock price we actually recorded in the past 90 days, with 3 days of observations available. Missing days are not estimated. Weekly change compares the lowest price among the same listings now and at their last recorded check 7–8 days ago. Different sizes, colours and bundles can have different prices; check the option shown beside each retailer price.
History is saved when connected shops are checked, including product-page and homepage price refreshes. Prices may change between checks.
Collecting price history — 3 recorded days
Daily lowest in-stock item price for the matched option · GBP
View recorded prices (3 days)
Date (UTC)
Lowest recorded
2026-10-06
£1,248.95
2026-10-05
£1,248.95
2026-09-28
£1,248.95
Gaps mean no qualifying check was recorded. Prices between observations are unknown. Retailer reference prices are not historical observations.
Product description & specifications
Compare the listed retailer options below. Check the exact size, colour, connection and included accessories before buying.
By merging the distinctive second stage design of Atomic Aquatics in titanium with a first stage featuring a sleek black Diamond-Like Carbon (DLC) over chrome plating, the B2x achieves a remarkable balance. Utilising Atomic Aquatics' proprietary Diamond-Like Carbon process, the B2x attains unparalleled tribological properties unmatched by any other brass regulator, ensuring supreme durability and corrosion resistance without compromising the seamless operation of the first stage. The DLC coating gives 16x more protection than just the raw metal.
The original Atomic Aquatics B2 has garnered more awards from independent tests and reviews than any other regulator on the market. The signature breathing performance of the T3 was first engineered into the B2 and then the B2x with virtually the same corrosion resistance. The B2x is ideally suited to divers who want flagship breathing performance in a robust, long-lasting package — whether diving warm tropical waters or cold demanding environments.
First Stage Features
DLC coating over chrome-plated brass
Atomic Aquatics exclusive balanced Jet Seat high-flow piston
Option to seal at dealer to prevent outside contamination from silt and sand
Nitrox ready – approved for non-dedicated EAN use with mixtures up to 40%
2 HP fixed ports / 5 LP ports on swivel cap
EN250A certified
Second Stage Features
All-titanium construction and materials – same as the T3
Pneumatically-balanced poppet, high-flow case and lever design for easy breathing at all depths and tank pressures
Patented Atomic Aquatics AFC – Automatic Flow Control eliminates manual Venturi adjustment as you dive deeper; no dials to turn or buttons to push
Soft overmoulded Rapid Adjustment Knob for manual detuning in special situations such as surf entries or octo use
Patented Titanium Seat Saving Dynamic Orifice maintains crisp like-new factory tuning and prevents damage during storage
Patented Atomic Aquatics Comfort Swivel – polished 316 stainless steel with black PVD coating, allowing 30° rotational movement without hose binding or kinking
Dual material second stage cover enables entire front to be used for purge
Elliptical exhaust valve dramatically reduces exhalation effort at depth
Dual silicone comfort fit mouthpiece with tear-resistant bite tabs – both comfortable and durable
Specifications
Specification
Detail
First Stage Type
Piston
First Stage Air Supply
Balanced
First Stage Connection
DIN (Sealed)
HP Ports
2
LP Ports
5
Second Stage Breathing Resistance
Adjustable
Second Stage Venturi
Automatic Flow Control (AFC)
Hose Material
Rubber
Nitrox Compatible
Yes (up to 40% EAN, non-dedicated)
Certification
EN250A
What's in the Box
First stage, second stage, hose
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Option to seal at dealer to prevent outside contamination from silt and sand
Nitrox ready – approved for non-dedicated EAN use with mixtures up to 40%
2 HP fixed ports / 5 LP ports on swivel cap
EN250A certified
All-titanium construction and materials – same as the T3
Pneumatically-balanced poppet, high-flow case and lever design for easy breathing at all depths and tank pressures
Patented Atomic Aquatics AFC – Automatic Flow Control eliminates manual Venturi adjustment as you dive deeper; no dials to turn or buttons to push
Soft overmoulded Rapid Adjustment Knob for manual detuning in special situations such as surf entries or octo use
Patented Titanium Seat Saving Dynamic Orifice maintains crisp like-new factory tuning and prevents damage during storage
Patented Atomic Aquatics Comfort Swivel – polished 316 stainless steel with black PVD coating, allowing 30° rotational movement without hose binding or kinking
Dual material second stage cover enables entire front to be used for purge
Elliptical exhaust valve dramatically reduces exhalation effort at depth
Dual silicone comfort fit mouthpiece with tear-resistant bite tabs – both comfortable and durable