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Questions & Answers

Mary C : When was regulator last serviced ?Mario C : when it was first assembled... its a brand new regulator...
BRIAN D : Can this be combined with an Air II System?Mario C : Thank you for your question, yes it can.
Kelle D : To a novice diver, will I notice a difference in performance between the C350 and C370 reg?MICHAEL B : Yes c370 much easier to breathe. Outstanding productPAUL C : Unfortunantly, I am unable to accurately answer your question because I upgraded from a Genesis 2000 reg to the C370. I would think you would not notice a significate difference between the C350 and C370.
Shopper : Why Did You Choose This?PAUL W : Recommended by Paula G with whom I chatted.

Reviews about this item

Review Summary

2024-04-10T20:00:00

Rated 5 out of 5

Best choice out there for the money

I have been using this combo on the new integrated BCD and it just takes so much stress off every dive because I know my equipment will work flawlessly. The second stage delivers easy breathing so I can control slow and even breaths. And it travels so well in a carryon. I highly recommend it.

Winnie1014

2023-01-28T19:00:00

Rated 5 out of 5

Over 150 dives flawless ??

I purchased this January 2019 and have 158 dives here in Kona Hawaii. Perfection every time. Scubapro is the best.

Generacer

2023-01-07T19:00:00

Rated 5 out of 5

Super reliable

This is my 2nd 1st and 2nd stage I've bought, I dive both recreationally and at work, recovering cars and boats. I've never had a free flow with this system, maintenance is easy, super easy to breath, and works flawlessly in perfect or zero visibility

Mikethetowdad

2021-07-12T08:42:49

Rated 5 out of 5

Awesome

Definitely i recommend this regulator works great is perfect for my first i definitely enjoy it.

Gabriel r.

2020-08-14T09:17:01

Rated 5 out of 5

works great for cold and tropical diving. Optimal with an Air2

nice lightweight reg, I got it not only for travel but also for local diving in Monterey. I've tried it with an Air2 and a standard Octo. If you use an Octo, note that the "high flow" LP ports are located one right and one left so assuming you have your primary second stage on the right; you'll either have to connect the Octo to the right side "non-high flow" LP (still works in this port) - or - connect to the "high flow" LP on the left (which is awkward for a standard Octo). The first stage ports are really designed to be optimal with an Air2 (which is on the left).

RODNEY A.

2019-08-09T20:00:00

Rated 5 out of 5

Excellent first stage and 2nd Stage for traveling!

Bought this MK11 first stage along with the new balanced C370 second stage a few months ago, and it has been wonderful! I've done several deep dives to over 100 FT. And multiple shallow dives under the 60 FT. range and performance has been incredible. It's super lightweight and so compact that you can pretty much fit it anywhere on your carry on bag or small dive bag. Work of breathing is pretty much effortless and i'm very impressed you can get this much quality and performance for the price!

DarioLado25

2018-06-16T14:42:54

Rated 4 out of 5

Lightweight and breathes nice

I purchased this after some discussion with my technical dive friends who recommended ScubaPro regulators. I found the set up lightweight which is nice for travel. It breathes easily. I still am trying to get used to a side entry hose as I have been using an long underarm hose to the second stage for years. Overall I think its a nice regulator.

RICHARD D.

Scubapro MK11/C370 Regulator Specifications

  • 1'st Stage Type

    Balanced Diaphragm

  • LP Ports

    4, Two High Flow
    Two Standard 3/8" Threaded

  • HP Ports

    Two 7/16" Threaded

  • Adjustable 2'nd Stage

    Adjustable Inhalation Effort
    Venturi Initiated Vacuum Assist (VIVA) Dive/Pre-Dive Switch

  • 2'nd Stage Type

    Air-Balancing Valve

  • Materials

    First-Stage: Chrome Plated Brass
    Second-Stage Valve Housing; Fiberglass-Reinforced Nylon

  • Hose Thread

    3/8"

  • Total Weight

    31 oz (881g)

  • UPC Code

    4048336388948

4 Accessories for Scubapro MK11/C370 Regulator

  • All Accessories (4)
  • Regulator Accessories (3)
  • Scuba Tools & Tool Kits (1)

About Scubapro MK11/C370 Regulator

FEATURED REVIEWS

works great for cold and tropical diving. Optimal with an Air2

By RODNEY A.

nice lightweight reg, I got it not only for travel but also for local diving in Monterey. I've tried it with an Air2 and a standard Octo. If you use an Octo, note that the "high flow" LP ports are located one right and one left so assuming you have your primary second stage on the right; you'll either have to connect the Octo to the right side "non-high flow" LP (still works in this port) - or - connect to the "high flow" LP on the left (which is awkward for a standard Octo). The first stag...

View full Review

Super reliable

By Mikethetowdad

This is my 2nd 1st and 2nd stage I've bought, I dive both recreationally and at work, recovering cars and boats. I've never had a free flow with this system, maintenance is easy, super easy to breath, and works flawlessly in perfect or zero visibility

Scubapro MK11/C370 Regulator

Scubapro MK11/C370 Regulator

The MK11/C370 is a great choice for dive-trekkers. The balanced diaphragm MK11, with its chrome-plated brass body specially designed to reduce size and weight, is an ideal travel companion. Its system features internal parts that are sealed from the elements. The new C370 brings forth the best features of its predecessor, the C350, while adding a balanced valve to its design. Its new exhaust tee, based on the S620 Ti’s design, contributes to a 10% improvement in work of breathing over the C350. With this regulator system in your dive bag you’ll be ready to hit the water.

Scubapro MK11/C370 Regulator

Scubapro MK11/C370 Regulator Features

  • Air-balanced diaphragm first stage design delivers constant and effortless airflow unaffected by depth, tank pressure, or breathing rate.
  • Marine grade brass body has sealed internal parts to prevent water and pollutants from fouling the inner mechanism while enhancing cold-water performance.
  • Two high pressure, two low pressure and two high-flow LP ports maximize hose routing options.
  • External intermediate pressure adjustment enables technicians to fine-tune performance quickly and easily.
  • Air-balanced second stage valve smoothes out the inhalation effort at varying depths and supply pressures.
  • Compact second stage fiberglass reinforced nylon casing with new exhaust tee takes up little space in a dive bag.
  • User controls include a diver-adjustable inhalation effort knob and coaxial dive/pre-dive lever.
  • Large purge button is easy to activate, even wearing thick gloves.
  • Super-flow hose features an oversized bore that allows more air to flow on each inhalation.
  • Compact Hi-Flow mouthpiece improves airflow as well as mouth comfort, fitting all mouth sizes.

The Scubapro MK11 First Stage Regulator is the perfect choice for recreational divers who want the benefits of a diaphragm first stage. This type of first stage is known for its environmental sealing, which prevents water from entering the internal mechanism.

This is particularly important for divers who will be diving in cold water, as regulators can generate temperatures as low as 22-degree F (-5.5-degree C), and it is important to keep sensitive metal parts from coming into contact with the cold water or debris. The MK11 features a balanced diaphragm and a streamlined body made of machined marine-grade chromed brass. It also comes with the Thermal Insulating System (TIS), which keeps the first stage from freezing up in cold water conditions.

Additionally, the over-balanced diaphragm design provides better breathing performance at greater depths, and the regulator is equipped with two 7/16" threaded HP and four 3/8" threaded LP Ports, with two of the LP Ports being High Flow Ports (HFP) for easier breathing.

The Scubapro C370 Second Stage Regulator is the latest addition to the company's high-performance line of second stages. Based on the compact C350, the C370 features a balanced valve and improved exhaust tee for better work of breathing. It also includes a compact hi-flow mouthpiece for increased airflow and comfort, as well as adjustable inhalation effort control and a coaxial dive/pre-dive lever.

The air-balanced valve smoothes out the inhalation effort at varying depths and supply pressures, and the compact and rugged fiberglass-reinforced nylon casing makes it easy to transport. The regulator comes with a 3/8" threaded hose, and weighs 31 oz. (881g), and includes an owner's manual.

Scubapro MK11/C370 Regulator Features

  • MK11/C370 Regulator:
  • Scubapro Performance & Reliability
  • Weight: 31 oz. (881g)
  • Owner's Manual
  • First Stage: Scubapro MK11 Regulator
  • Balanced Diaphragm 1st Stage Design
  • Chrome Plated Brass Body
  • Multiple LP Ports, 2 HFP, 2 SFP w/3/8" Threads
  • 2 HP Ports w/7/16" Threads
  • Compact Streamline
  • Environmentally Sealed
  • Cold Water: Anti-Freeze Protection & Dry Chamber
  • Second Stage: Scubapro C370
  • Most Compact Second Stage In-Scubapro's Line
  • Lightweight, Breathes Smooth & Extremely Easy
  • Diver Adjustable Inhalation Effort for Personalized Breathing Control
  • Venturi Initiated Vacuum Assist (VIVA):
    Dive/Pre-Dive Control Switch
    Prevents Free Flow In-Cold Water
  • Linear Air-Balancing Valve
  • Top-Notch Air-Balancing System
  • Compact Body & Exhaust Tee
  • Takes Up Little Space In-Travel Dive Bag
  • New Poppet & Lever: Maintains Same Overall Size of C350
  • Stainless Steel Cover Frame Adds Some Style
  • Large Purge Button: Easy to Activate, Even Wearing Thick Gloves
  • Compact Ultra-Comfortable Orthodontic Mouthpiece
  • Mouthpiece:
    Easy to Grip Yet Doesn't Inhibit Airflow
    Fits All Mouth Sizes, from Smallest to Largest
  • Construction: Precision Molded Rugged Fiberglass-Reinforced Nylon
  • Super Flow Oversized Bore 3/8" Threaded LP Hose

Warranty Information

This product has a limited lifetime warranty.

Key Features

  • The Scubapro MK11 First Stage Regulator is perfect for recreational divers in temperate waters
  • The balanced diaphragm design offers smooth breathing and maximum performance
  • The Thermal Insulating System (TIS) keeps the first stage from freezing in cold water
  • The Scubapro C370 Second Stage Regulator features a balanced valve and improved exhaust tee
  • The compact and rugged fiberglass-reinforced nylon casing makes it easy to transport

What's in the box:

  • 1'st Stage
  • 2'nd Stage
  • Low Pressure Hose
  • Owner's Manual
  • MFG Lifetime Limited Warranty