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Mk25 EVO 1st Stage

£255.00 RRP £300.00 SKU: 76373-1

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Scubapro Mk25 EVO 1st Stage

Mk25 EVO 1st Stage

£255.00 RRP £300.00

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Mk25 EVO 1st Stage

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Mk25 EVO 1st Stage

£255.00 RRP £300.00 Out Of Stock

Brand: Scubapro

Model: Mk25 EVO 1st Stage

SKU: 76373-1

Please note: This item cannot be shipped outside the European Union - learn more

The Scubapro Mk25 EVO 1st Stage is the most versatile and highest performing Scubapro 1st stage.  The Mk 25 has XTIS treatment for better cold water performance.  The 5-port swivelling turret allows for better hose routing options for all divers if you dive a single, twins or side mounted stages.

MK25 EVO 1st Stage is one of the highest highest performance first stages available now with a dramatically evolved balanced piston first stage with 30% increased freezing resistance, greater inhalation sensitivity for ultrafast breathing response, instant delivery of air on demand and extra high airflow no matter how cold the water temperature.

The balanced piston design is more than capable of supporting a whole team of divers simultaneously without faltering. The sleek body has heat exchanging fins incorporated into it's design to aid dissipation of the cold generated by the first stage as it works. The piston and main spring have been specially coated with an anti-freeze layer to improve coldwater performance and reliability. The MK25 provides two high pressure ports and five low pressure ports (four around a swivelling turret and a high flow port of the very end of the turret).



Who is the Mk25 for?

 The Mk25 is the highest performing 1st stage from Scubapro and the 5-port swivelling turret makes any hose routing choice much easier so the Mk25 is suitable for any diver.  The Mk25 works so well that it is used in some research subersibles to maintain the pressure inside the cockpit.


The Mk25 is compatible with any Scubapro 2nd Stage, any SPG, any 3/8" Low Pressure Hose (but Scubapro Superflow Hoses are recommended), any 7/16" High Pressure Hose.

Essential Accessories

The Mk25 is just a 1st stage so you will need hoses and 2nd stages and a SPG.  1st stages will arrive with one port left open without a plug for safety.

We recommend 

Alternate Products

Apeks make a very similar 5-port swivel turret 1st stage the DST and there is also a 4-port swivel turret DST if you don't need the 5th. The Mk17 EVO is another reliable and tough 1st stage from Scubapro, perfect for lots of uses and configurations.

If you are looking to build a complete regulator set then you can start with the Mk2/R195 Combo but the Mk25 also comes as standard in these configurations:







Weight (kg) Measurements (cm)
 DIN 0.648 TBA



About Scubapro

Scubapro dive gear is considered among the finest quality dive equipment and snorkel equipment available today and is used by many professional divers all over the world.

Scubapro's attention to detail is pinnacle with each piece of equipment so it performs perfectly in the water. Each part of their regulators is carefully crafted to improve airflow for a smooth breathe with minimal turbulence.


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Scubapro Mk25 EVO 1st Stage - Features

FeatureProduct Specification
Adjustable Inhalation
This feature allows the diver to adjust the inhalation setting from the set level and increase the effort required to open the 2nd stage valve to deliver air. Close.
Adjustable Venturi
The venturi control affects how air flows in the 2nd stage. In it's positive position the flow of gas creates a vacuum against the diapragm, helping to open the valve. In it's negative position it will divert gas back against the diaphragm helping to close the valve. It is basically used to help prevent free flowing. Close.
Cold Water Rated
Cold water has adverse effects on regulators and can cause some to freeze so each regulator combination must be tested during manufacturing for their performance in different water temperatures.

Cold water is defined by EN250 as below 10°C. If a regulator combination cannot meet the performance standards below 10°C then they are only suitable for warm waters.

EN250 / (EN250A >10°C)
To pass the regulator must provide at least 62.5 L/min of air at 50M depth above 10°C. Close.
Cold & Warm Water
Environmentally sealed
Environmentally sealed 1st stages offer greater protection against freezing when diving in cold water (below 10 degrees C)

Scubapro have a new method of cold water proofing their first stages called the eXtended Thermal Insulating System or XTIS which still allows water into the first stage but the internal parts that come into contact with the water are coated to prevent ice from forming. Close.
First Stage
Unbalanced regulators are affected by the pressure in the cylinder, becoming slighty harder to breathe from when the pressure starts to drop.

Balanced regulators are not affected by the cylinder pressure or depth.

Over-balanced regulators achieve unprecedented performance by increasing your air supply the deeper you go providing the best breathe for deep divers. Close.
High Pressure Ports
High pressure ports supply the pressure gauge and wireless transmitters for dive computers Close.
Low Pressure Ports
Low pressure ports supply the 2nd stages and inflator hoses Close.
Service Information
All regulators need to be serviced to keep them in working order as the parts inside them age and wear over time and with use. Most regulators need to be serviced once a year or after 100 dives with normal recreational use to replace parts and re-balance.

Some regulators use more modern materials or mechanisms that allow them to extend the servicing interval that can save you some money in the long run. Close.
2 Year - 100 Dives

We offer free tracked UK standard delivery on orders over £50.

Standard UK delivery is £3.95 for orders under £50. You will receive your order 2 - 4 days from the date of despatch. Order by 3pm on a working weekday and we will aim to despatch the same day.

Next Working Day for the UK is £6.95.

Learn more about delivery

We hope you will be completely satisfied with any product purchased from Simply Scuba.

However, you can return it for any reason within 28 days from the date of despatch for a full refund (less postage costs).

Royal Mail tracked return option within the UK for your convenience.

Learn more about returns

Scuba regulator Advice

Choosing The Right Regulator

Looking for advice on choosing the right regulator?

Not a problem. Watch our video from our in-house expert Mark.

What To Buy DIN Or A-Clamp

Not sure which connection to go for?

Watch our video with Mark to learn which is best for you.

What Are Cold Water Regs

What makes a good cold water regulator?

Watch our video from our in-house expert Mark to find out what to look for.