Scubapro MK17 EVO C370 Regulator
Scubapro MK17 EVO C370 Regulator
Scubapro C370 second stage
Scubapro C370 second stage side
Scubapro C370 second stage
Scubapro MK17 first stage DIN
Scubapro MK17 first stage A-clamp

Scubapro MK17 EVO C370 Regulator

Sale price£400.00 Regular price£445.00
Save £45.00

The Scubapro MK17 EVO C370 Regulator combines the premium diaphragm 1st stage with Scubapro's lightest air-balanced 2nd stage. You have a regulator set with the environmentally sealed 1st stage that will reliably perform in all conditions.

DIN or A-Clamp?

DIN or A-Clamp?


Dispatched in 1 to 2 days

Contact Form & Details

How can we help?

If you need to contact us for any issue or assistance, you can do so online by filling out the online Contact Form, emailing us at or calling us on +44(0)1305 824 555. If it's about a purchase you've made for us please also include your order number.

Our brick-and-mortar store Underwater Explorers based on Portland, Dorset is staffed 7 days a week, including weekends and bank holidays. As it's an active store visited by divers from around the country and world regularly, if we can't make it to the phone for any reason please leave a message and we'll get back to you asap.

Any queries are usually answered the very same day and at most within 24 hours.


Why Portland?

We’re located on the Isle of Portland (in Dorset) because Portland has been one of the most popular scuba diving locations in the United Kingdom even before we set up operations here back in the year 2000.

On one side, we’re minutes away from the sheltered waters of Portland Marina and Harbour, while on the other, it’s just a brief walk to reach our famous scuba diving destination Chesil Cove and start of the 16-mile-long Chesil Beach.  

Portland’s location makes it ideal for scuba diving, freediving, snorkelling and other surface water sports activities. 

Check out how many wrecks we have around here by clicking on Scimitar Diving's Wreck & Dive Sites chart!

Alongside dive clubs, many instructors and dive schools travel here to train and offer scuba diving certification ranging from open water diver to mixed-gas tech diving or rebreather diving levels.

Whether you’re doing a boat dive from Portland Marina or Castletown or a shore dive at Chesil Cove, Portland is well known for offering many possibilities: Reef diving to wreck diving and night diving, underwater photography or underwater videography. Anything other than cave diving is possible here.

Likely being the best-stocked diving shop in the UK, at Underwater Explorers we offer in-store scuba diving equipment advice and sales, as well as gas fills, to locals and visitors (read About Us).

But... If you’re googling “scuba diving shop near me” like some, look no further, there's DirDirect online.

Here at DirDirect, we list our cutting-edge equipment for worldwide delivery and we’ve got you covered whatever your level of diving: We’re your local dive store wherever you are in the world.

All that with over 20 years of experience especially in technical diving, from training to equipment, advice and sales.


Underwater Explorers, Unit 1, Maritime Business Centre
Mereside, Portland, Dorset, DT5 1FD


The Scubapro MK17 EVO C370 Regulator combines Scubapro’s premium diaphragm first stage with its lightest air-balanced second stage.

The Scubapro MK17 EVO first stage is completely sealed off from the elements, ensuring trouble-free operation no matter how cold or murky the water gets. It is more compact yet delivers better breathing performance than its predecessor. Its improved internal design allows more airflow from the LP ports reconfigured for better hose routing.

The Scubapro C370 second stage brings forth the best features of its predecessor while adding a balanced valve to its design. Its exhaust tee, based on the S620 Ti’s design, contributes to an improvement in work of breathing. It’s a smart reg system for all kinds of diving applications.

Scubapro MK17 EVO C370 Regulator includes

  • Scubapro C370 Second Stage
  • Scubapro MK17 EVO First Stage
  • Scubapro High-flow Regulator Hose

Features of Scubapro C370 Second Stage Regulator

Air-balanced valve smoothes out the inhalation effort at varying depths and supply pressures.

Compact, rugged fiberglass reinforced nylon casing and new exhaust tee take up little space in a dive bag. The stainless steel frame on the front cover adds the Scubapro C-Series signature.

A new poppet and lever allow the design to maintain the same overall size as the C350. A new exhaust tee based on the S620 Ti's design contributes to better work of breathing (a 10% improvement over the C350)

User controls of Scubapro C370 Second Stage include a diver-adjustable inhalation effort knob and Venturi-Initiated Vacuum Assist (VIVA). The large purge button is easy to activate, even wearing thick gloves.

Compact Hi-Flow mouthpiece improves airflow as well as mouth comfort, fitting all mouth sizes, from smaller to largest

  • Weight: 171g
  • Airflow at 200bar: 1600 l/min
  • Nitrox compatible up to 40%

Scubapro MK17 EVO First Stage Regulator features

The Scubapro MK17 EVO First Stage Regulator is engineered specifically for cold water and harsh environments, its internal components are completely sealed off from the elements, so neither water nor pollution can get inside the chrome-plated marine-grade brass body to foul the mechanism.

This total sealing system also allows for a dry ambient pressure chamber which works to prevent freezing, provides better protection and improves performance, ensuring trouble-free operation no matter how cold or murky the water gets.

Air-balanced diaphragm delivers constant and effortless airflow unaffected by depth, tank pressure, or breathing rate.

An environmentally sealed system prevents water and pollutants from fouling the inner mechanism.

A more compact design of Scubapto MK17 EVO features a smaller dry ambient pressure chamber and spring, although the bulletproof inner parts remain the same.

A dry ambient pressure chamber increases freezing resistance, ensuring consistent airflow in the coldest conditions.

Substantial increase in airflow - 6900 l/min versus 6500 l/min - includes improved balance of air supply pressure.

Scubapto MK17 EVO has two high-pressure and four high-flow ports maximise air delivery and hose routing options.

High-flow performance is available from all four LP ports, which are configured for optimum hose routing.

  • Weight: INT 232 - 850g
  • Airflow at 200bar: 6900 l/ min - 230 SCFM
  • Intermediate pressure (bar): 9.0-9.8
  • Nitrox compatible up to 40%

DIN or A-clamp first stage?

Most of our divers prefer DIN fitting on the 1st stage regulator. A DIN regulator has a threaded post which screws into the inside of a DIN tank valve and has no additional metal or braces that run behind the valve. This, together with the position of its o-ring, creates a more secure seal on the tank.

YOKE (or A-Clamp) 1st stages have an oblong metal brace that completely encircles the tank valve when in place and is screwed down on the tank valve when the yoke screw is tightened.

Both regulators seal to the scuba tank through an o-ring where the o-ring on a Yoke valve is in the tank valve itself as opposed to DIN regulators with their own o-ring.

DIN fittings are commonly accepted as more secure, but Yoke valves are common throughout North America and recreational tourist destinations. A DIN regulator can be adapted to Yoke valves by using an A-clamp adapter for travel.

SKU: 12.803.300