Best Dive Regulators · head-to-head

Scubapro MK25 EVO/S620Ti vs Atomic Aquatics B2

A sourced, side-by-side comparison. Scubapro MK25 EVO/S620Ti is cheaper at —. Every spec and price links to its source.

Which is better: the Scubapro MK25 EVO/S620Ti or Atomic Aquatics B2?

The Atomic Aquatics B2 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 Scubapro MK25 EVO/S620Ti Atomic Aquatics B2
US price
BrandScubaproAtomic Aquatics
Released
First stage type piston piston
Balanced Yes Yes
Din or yoke INT (yoke) standard; DIN version available DIN and yoke
Hp lp ports 2 HP / 5 LP (incl. 1 axial super high-flow) 2 HP / 5 LP (on swivel cap)
Cold water rated Yes
Environmentally sealed No Yes
Adjustable venturi controls diver-adjustable inhalation-effort knob + VIVA (Venturi-Initiated Vacuum Assist) lever AFC (Automatic Flow Control) with manual detune knob
Weight (g) 1170 1134

Sources — Scubapro MK25 EVO/S620Ti: scubapro.johnsonoutdoors.com (verified 2026-08-11). Atomic Aquatics B2: atomicaquatics.com (verified 2026-08-11).

What's the difference between the Scubapro MK25 EVO/S620Ti and Atomic Aquatics B2?

Where the two actually differ on the specs we track (5 of 8). Matching specs are omitted.

  • Din or yoke: Scubapro MK25 EVO/S620Ti INT (yoke) standard; DIN version available vs Atomic Aquatics B2 DIN and yoke
  • Hp lp ports: Scubapro MK25 EVO/S620Ti 2 HP / 5 LP (incl. 1 axial super high-flow) vs Atomic Aquatics B2 2 HP / 5 LP (on swivel cap)
  • Environmentally sealed: Scubapro MK25 EVO/S620Ti false vs Atomic Aquatics B2 true
  • Adjustable venturi controls: Scubapro MK25 EVO/S620Ti diver-adjustable inhalation-effort knob + VIVA (Venturi-Initiated Vacuum Assist) lever vs Atomic Aquatics B2 AFC (Automatic Flow Control) with manual detune knob
  • Weight (g): Scubapro MK25 EVO/S620Ti 1170 vs Atomic Aquatics B2 1134

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