I stages

The regulator 1st stage mounts directly onto your cylinder valve and reduces the high tank pressure (200–300 bar) to an intermediate pressure (typically 8–10 bar above ambient) delivered through low-pressure hoses to your 2nd stage, octopus and BCD inflator, and through a high-pressure hose to your pressure gauge. Our 1st stage range covers balanced piston and diaphragm designs, DIN (threaded) and INT (A-clamp) connections, and environmentally sealed cold water models from Apeks, Aqualung, Mares and ScubaPro.

ScubaPro MK25 EVO First stage ScubaPro MK25 EVO First stage 2
  • New
Availability 5-10 days
I stages
ScubaPro MK25 EVO First Stage
ScubaPro
10.713.030-P
€519.00
SCUBAPRO piston-controlled first stage with an extremely punctual and consistent high delivery of air, ensuring unfailing performance.
ScubaPro MK2 EVO First stage ScubaPro MK2 EVO First stage 2
Availability 5-10 days
I stages
ScubaPro MK2 EVO First stage
ScubaPro
10.063.300-P
€239.00
A totally evolved classic downstream piston first stage, now more of a workhorse than ever. With increased breathing sensitivity and better airflow, freezing resistance is dramatically increased.
Mares 15X First Stage Mares 15X First Stage 2
In Stock
I stages
Mares 15X First Stage
Mares
416237
€249.00
The 15X first stage is suitable for any use. It has pre-oriented ports and an ACT valve for reliability and safety. It is equipped with a DFC system for great performance at any depth.
Mares 2s First Stage
In Stock
I stages
Mares 2s First Stage
Mares
416232
€155.00
The 2S first stage is simple and reliable. It is renowned for its ease of maintenance and excellent performance.
ScubaPro MK19 EVO First Stage
  • New
Despatched within 6–10 days
I stages
ScubaPro MK19 EVO First Stage
ScubaPro
10.719.030-P
€519.00
SCUBAPRO engineers have taken some of the best features from our past air-balanced first stages and created the all new MK19 EVO. It is environmentally sealed, preventing water and pollutants from entering the inner mechanism.
ScubaPro MK25 EVO T S620 X-Ti Only DIN Regulator
  • New
Despatched within 6–10 days
I stages
ScubaPro MK25 EVO T S620 X-Ti Only DIN Regulator
ScubaPro
12.620.600
€2,349.00
The MK25 EVO T is machined from a solid block of titanium which will not corrode, even in concentrated saltwater conditions. It offers excellent resistance to freezing, superb inhalation sensitivity and instant delivery of air on demand.
ScubaPro MK2 EVO 1st Stage Regulator
  • New
Despatched within 6–10 days
I stages
ScubaPro MK2 EVO 1st Stage Regulator
ScubaPro
10.063.000-P
€239.00
The most economical first stage in SCUBAPRO’s line, the MK2 EVO, with its chrome-plated marine-grade brass body, is the only downstream piston-style first stage with internal components specifically designed to resist freezing in extreme cold-water conditions.
Mares First Stage 62X Mares First Stage 62X 2
  • New
Despatched within 6–10 days
Regulators
Mares First Stage 62X
Mares
416267
€349.00
The Mares 62X first stage breaks records as the smallest first stage in the diving market: it measures 63 mm and weighs only 464 g (DIN). This small but powerful diaphragm first stage is 10% smaller and lighter than its 52X predecessor and has 30% less volume.
ScubaPro MK17 EVO 2 1st Stage
  • New
Despatched within 6–10 days
I stages
ScubaPro MK17 EVO 2 1st Stage
ScubaPro
10.017.000-P
€399.00
The MK17 EVO 2 is a sealed, air-balanced diaphragm first stage built for cold or contaminated water.
ScubaPro MK11 EVO 1st Stage
  • New
Despatched within 6–10 days
I stages
ScubaPro MK11 EVO 1st Stage
ScubaPro
10.011.000-P
€299.00
The MK11 EVO is a compact, air-balanced diaphragm first stage that delivers effortless airflow regardless of depth, tank pressure or breathing rate.

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