Atomic Aquatics
Atomic Aquatics B2
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Best Dive Regulators · head-to-head
Atomic Aquatics B2 vs Cressi AC25M Master Cromo
A sourced, side-by-side comparison. Cressi AC25M Master Cromo is cheaper at $629.95. Every spec and price links to its source.
Cressi
Cressi AC25M Master Cromo
$629.95
Which is better: the Atomic Aquatics B2 or Cressi AC25M Master Cromo?
The Cressi AC25M Master Cromo wins 1 of the 1 specs we compare head to head; the other wins 0.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec |  Atomic Aquatics B2 |  Cressi AC25M Master Cromo |
|---|---|---|
| US price | — | $629.95 |
| Brand | Atomic Aquatics | Cressi |
| Released | — | — |
| First stage type | piston | piston |
| Balanced | Yes | Yes |
| Din or yoke | DIN and yoke | DIN (300 bar) and INT/yoke (230 bar) versions |
| Hp lp ports | 2 HP / 5 LP (on swivel cap) | 2 HP / 5 LP (4 on rotating turret + 1 co-axial hi-flow) |
| Cold water rated | — | Yes |
| Environmentally sealed | Yes | No |
| Adjustable venturi controls | AFC (Automatic Flow Control) with manual detune knob | external IP adjustment (Allen key) + venturi knob + adjustable inhalation effort |
| Weight (g) | 1134 | 1123 |
Sources — Atomic Aquatics B2: atomicaquatics.com (verified 2026-08-11). Cressi AC25M Master Cromo: cressiamerica.com (verified 2026-10-08).
What's the difference between the Atomic Aquatics B2 and Cressi AC25M Master Cromo?
Where the two actually differ on the specs we track (5 of 8). Matching specs are omitted.
- Din or yoke: Atomic Aquatics B2 DIN and yoke vs Cressi AC25M Master Cromo DIN (300 bar) and INT/yoke (230 bar) versions
- Hp lp ports: Atomic Aquatics B2 2 HP / 5 LP (on swivel cap) vs Cressi AC25M Master Cromo 2 HP / 5 LP (4 on rotating turret + 1 co-axial hi-flow)
- Environmentally sealed: Atomic Aquatics B2 true vs Cressi AC25M Master Cromo false
- Adjustable venturi controls: Atomic Aquatics B2 AFC (Automatic Flow Control) with manual detune knob vs Cressi AC25M Master Cromo external IP adjustment (Allen key) + venturi knob + adjustable inhalation effort
- Weight (g): Atomic Aquatics B2 1134 vs Cressi AC25M Master Cromo 1123