Choosing the Right Regulator

A Simple Guide to Finding What Works for You

There are a lot of great regulators out there—and most of them will do the job.

The difference comes down to how they feel, how they’re built, and how you plan to dive.

This guide breaks down our lineup in a simple way so you can quickly see what makes sense for you.

🧭 Start Here: What Kind of Diver Are You?

Just getting started / want something simple
→ Look at MK2 EVO / R105

Want smoother breathing + more control
→ Look at MK11 EVO / C370

Diving often / want high performance
→ Look at MK25 systems

Prefer comfort + minimal adjustments
→ Look at Atomic regulators

🔧 SCUBAPRO REGULATORS

MK2 EVO / R105

Simple. Durable. No-Fuss.

  • Entry-level / backup system
  • Very reliable, easy to maintain
  • No adjustments

👉 Best for:
New divers, rentals, backup setups

MK11 EVO / C370

Balanced. Adjustable. Great Upgrade.

  • Easier breathing than entry-level
  • Adjustable inhalation control
  • Compact and travel-friendly

👉 Best for:
Divers upgrading from their first setup

MK25 EVO / S620 Ti

Lightweight Performance

  • Very smooth breathing
  • Lightweight second stage
  • Fully adjustable

👉 Best for:
Divers who want performance + comfort

MK25 EVO / G260

Rugged Performance

  • Durable, tech-friendly design
  • Reversible hose setup
  • Great in all conditions

👉 Best for:
Frequent divers, colder water, tougher use

MK25 EVO / A700 Carbon

Maximum Performance (Metal Build)

  • Full metal second stage
  • Excellent cold water performance
  • Very refined breathing

👉 Best for:
Divers who want top-tier performance and durability

MK25 EVO BT / G260 Carbon

Rugged + Corrosion Resistant

  • Black Tech coating for durability
  • Carbon fiber front
  • Built for heavy use

👉 Best for:
High-use divers, tech setups, long-term durability

⚙️ ATOMIC REGULATORS

Z3

Simple High Performance

  • Smooth breathing with minimal adjustment
  • Corrosion-resistant design
  • Lightweight

👉 Best for:
Divers who want performance without complexity

B2

Best Balance of Comfort + Performance

  • Very comfortable breathing
  • Comfort swivel reduces jaw fatigue
  • High-end feel without full titanium price

👉 Best for:
Most divers looking for a long-term primary regulator

T3

Ultra Premium / Travel

  • Full titanium construction
  • Extremely lightweight
  • Maximum corrosion resistance

👉 Best for:
Frequent travelers and long-term investment

🧠 Key Differences (Quick Breakdown)

Piston vs Diaphragm

  • Piston (MK25, Atomic) → higher airflow, simpler design
  • Diaphragm (MK11) → more sealed, slightly more protected

Balanced vs Unbalanced

  • Balanced → easier breathing at all depths
  • Unbalanced → simpler, more basic

Adjustments

  • Some regs let you fine-tune breathing
  • Others (like Atomic) do it automatically

💡 What Actually Matters Most

Instead of overthinking specs, focus on:

  • How often you dive
  • Where you dive (cold water vs travel)
  • Comfort in your mouth
  • Whether you want to adjust your reg or not

🏁 Blue Holic Bottom Line

There’s no “best” regulator—only what fits your diving.

  • Want simple + reliable → MK2
  • Want balanced upgrade → MK11
  • Want high performance → MK25
  • Want comfort + ease → Atomic B2
  • Want top-tier / long-term → A700 or T3

Blue Holic Tip 🌊

The biggest difference you’ll notice isn’t on paper—it’s how the regulator feels when you breathe from it.

If you’re unsure, come by the shop and we’ll walk you through what actually makes sense for you.