# Atomic Aquatics B2 vs Aqua Lung Legend Elite: specs and price compared

A sourced, side-by-side comparison of the Atomic Aquatics B2 (Atomic Aquatics) and Aqua Lung Legend Elite (Aqua Lung) among dive regulators.

## Side by side

| Spec | Atomic Aquatics B2 | Aqua Lung Legend Elite |
| --- | --- | --- |
| US price | not published | not published |
| Brand | Atomic Aquatics | Aqua Lung |
| First stage type | piston | diaphragm |
| Balanced | Yes | Yes |
| Din or yoke | DIN and yoke | DIN and INT (yoke), convertible |
| Hp lp ports | 2 HP / 5 LP (on swivel cap) | — |
| Cold water rated | — | Yes |
| Environmentally sealed | Yes | Yes |
| Adjustable venturi controls | AFC (Automatic Flow Control) with manual detune knob | adjustable breathing-resistance knob + dive/pre-dive venturi switch |
| Weight (g) | 1134 | — |

## Key differences

- First stage type: Atomic Aquatics B2 piston vs Aqua Lung Legend Elite diaphragm
- Din or yoke: Atomic Aquatics B2 DIN and yoke vs Aqua Lung Legend Elite DIN and INT (yoke), convertible
- Adjustable venturi controls: Atomic Aquatics B2 AFC (Automatic Flow Control) with manual detune knob vs Aqua Lung Legend Elite adjustable breathing-resistance knob + dive/pre-dive venturi switch

## Sources

- Atomic Aquatics B2: https://www.atomicaquatics.com/product/b2-regulator/ (atomicaquatics.com, verified 2026-08-11)
- Aqua Lung Legend Elite: https://www.aqualung.com/us/regulators/legend-elite.html (aqualung.com, verified 2026-08-11)

Canonical: https://frontdeskreview.com/gear/dive-regulators/atomic-aquatics-b2-vs-aqualung-legend-elite/
Cite: Per The Front Desk Review, Atomic Aquatics B2 (not published) vs Aqua Lung Legend Elite (not published) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/dive-regulators/atomic-aquatics-b2-vs-aqualung-legend-elite/
License: CC BY 4.0.