1st stages
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CE cert for cold water
CE cert for cold water
Regsets with a CE cold water certificate have been tested in waters below 10 degrees. When diving in NL/BE this comes in handy. In summer, the water on the surface may be warmer than 10 degrees, however, when decending to greater depths, you’ll hit various thermoclines in which the water temperature may be less than 10 degrees.
1st stage connection
1st stage connection
The INT ( yoke) connection uses a clamp type to mount the regulator over the cylinder valve and is tightened into place by screwing the cap. This pushes the first stage into the sealing o-ring of the cylinder valve. With the DIN fitting the male part is screwed into the valve to securely capture the o-ring. We recommend the DIN connection, since this is a safer connection. This connection is mostly used for 300bar cylinders. However, the DIN300 bar connection also works with a 200bar tank valve
1st stage HP port
1st stage HP port
A second high pressure port on a 1st stage is necesarry if you are contemplating to dive with a computer that is air integrated. The transmitter will be attached to the second high pressure port so that you will always have backup analogue SPG.
1st stage LP port
Hose type
Hose type
Flex hoses are, as the word already describes it, more flexible than rubber hoses. By using these types of hoses the chance of your 2nd stage fitting more comfortable in your mouth, is doubled. The flex hoses are also easier to roll up for transportation and a little lighter than rubber hoses.
Nitrox
Nitrox
In Europe, it is mandatory to have a special M26 regset and cylinder when diving with Nitrox. The regsets that are shown here, do not have this special M26 thread. However, these are all technically fit to dive with Nitrox up to 40%. Outside of Europe, you can use these regs to dive with Nitrox up to 40%.
1st stage ACD
1st stage ACD
Several regset manufactured by Aqualung have the ACD system. This system makes sure that water will not get in to the 1st stage after diving or even if you have forgotten to put on your dust cap when you rinse your materials.
1st stage air supply
1st stage air supply
When you dive with an unbalanced 1st stage, breathing may become a little harder as your cylinder is being depleted of air. A balanced 1st stage will give you an even resistance during your dive, as long as your cylinder contains more than 20 Bar. An overbalanced 1st stage will give you a little more pressure when at depth, which will make breathing at greater depth easier. You will be able to feel the difference from a depth of 20 to 25 meters.
1st stage type
1st stage type
A piston 1st stage is easier to service, since there are less parts. However, a piston 1st stage needs to be serviced earlier than other 1st stages, since the water does get inside the 1st stage. A membrane 1st stage may be less maintanace- sensitive, however, you’ll have to be more precise in adjusting it. If you would like to dive in cold(er) waters, we would recommend a 1st stage with a membrane.
EN250A
EN250A
Regulator sets with an EN250A marking have been tested by breathing simultaniously through the primary 2nd stage and the octopus. This will increase the pressure that is put on the 1st stage and these regsets have passed that specific test. These sets can be used with an octopus up to a depth of 30 meters. Below 30 meters a separate air system with an extra 1st stage is advised.
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Aqualung 1st Stage Calypso

Aqualung 1st Stage Calypso

  • Ongebalanceerde piston eerste trap
  • 1 hogedrukpoort
  • 4 lagedrukpoorten
139,00 114,88 Excl. VAT
Apeks topper! Apeks Ds4 1St Stage

Apeks Ds4 1St Stage

  • Overgebalanceerde membraan eerste trap
  • 1 hogedrukpoort
  • 4 lagedrukpoorten
179,00 147,93 Excl. VAT
Apeks Mtx-R 1St Stage

Apeks Mtx-R 1St Stage

  • Overgebalanceerde membraan eerste trap
  • 2 hogedrukpoorten
  • 5 lagedrukpoorten
379,00 313,22 Excl. VAT
Super dubbelset! Apeks Lh & Rh Tek3  1St Stages

Apeks Lh & Rh Tek3 1St Stages

  • Overgebalanceerde membraan eerste trap
  • 1 hogedrukpoort
  • 3 lagedrukpoorten
529,00 437,19 Excl. VAT
Apeks Xtx Dst 1St Stage

Apeks Xtx Dst 1St Stage

  • Overgebalanceerde membraan eerste trap
  • 2 hogedrukpoorten
  • 4 lagedrukpoorten
279,00 230,58 Excl. VAT
Apeks Xtx 5 Port Dst 1St Stage

Apeks Xtx 5 Port Dst 1St Stage

  • Overgebalanceerde membraan eerste trap
  • 2 hogedrukpoorten
  • 5 lagedrukpoorten
299,00 247,11 Excl. VAT
Mares R2S First Stage

Mares R2S First Stage

  • Ongebalanceerde piston eerste trap
  • 1 hogedrukpoort
  • 4 lagedrukpoorten
129,00 106,61 Excl. VAT
Scubapro MK17 Evo 1e Trap

Scubapro MK17 Evo 1e Trap

  • Gebalanceerde membraan eerste trap
  • 2 hogedrukpoorten
  • 4 lagedrukpoorten
219,00 180,99 Excl. VAT
Scubapro MK25 Evo 1e Trap

Scubapro MK25 Evo 1e Trap

  • Overgebalanceerde piston eerste trap
  • 2 hogedrukpoorten
  • 5 lagedrukpoorten
319,00 263,64 Excl. VAT
Apeks DB4 1e Trap (Wit)

Apeks DB4 1e Trap (Wit)

  • Overgebalanceerde membraan eerste trap
  • 2 hogedrukpoorten
  • 4 lagedrukpoorten
239,00 197,52 Excl. VAT
Apeks Ds1 1St Stage Din

Apeks Ds1 1St Stage Din

  • Overgebalanceerde membraan eerste trap
  • 1 hogedrukpoort
  • 1 lagedrukpoort
169,00 139,67 Excl. VAT
Apeks Nitrox Ds4 1St Stage

Apeks Nitrox Ds4 1St Stage

  • Din M26 EN Din G5/8
  • Overgebalanceerde membraan eerste trap
  • 1 hogedrukpoort
  • 4 lagedrukpoorten
199,00 164,46 Excl. VAT
Apeks Nitrox Dst 1St Stage

Apeks Nitrox Dst 1St Stage

  • Din M26 EN Din G5/8
  • Overgebalanceerde membraan eerste trap
  • 2 hogedrukpoorten
  • 4 lagedrukpoorten
299,00 247,11 Excl. VAT
Apeks MTX-RC 1e Trap

Apeks MTX-RC 1e Trap

  • Overgebalanceerde membraan eerste trap
  • 2 hogedrukpoorten
  • 5 lagedrukpoorten
419,00 346,28 Excl. VAT
Apeks Tek3 Lh 1St Stage

Apeks Tek3 Lh 1St Stage

  • Overgebalanceerde membraan eerste trap
  • 1 hogedrukpoort
  • 3 lagedrukpoorten
299,00 247,11 Excl. VAT
Apeks Tek3 Rh 1St Stage

Apeks Tek3 Rh 1St Stage

  • Overgebalanceerde membraan eerste trap
  • 1 hogedrukpoort
  • 3 lagedrukpoorten
299,00 247,11 Excl. VAT
Apeks Nitrox M26 Tek3 Lh 1St

Apeks Nitrox M26 Tek3 Lh 1St

  • Overgebalanceerde membraan eerste trap
  • 1 hogedrukpoort
  • 3 lagedrukpoorten
319,00 263,64 Excl. VAT
Apeks Nitrox M26 Tek3 Rh 1St

Apeks Nitrox M26 Tek3 Rh 1St

  • Overgebalanceerde membraan eerste trap
  • 1 hogedrukpoort
  • 3 lagedrukpoorten
319,00 263,64 Excl. VAT
Apeks Tungsten 1e Trap

Apeks Tungsten 1e Trap

  • Overgebalanceerde membraan eerste trap
  • 2 hogedrukpoorten
  • 5 lagedrukpoorten
399,00 329,75 Excl. VAT
Apeks Us1 1St Stage

Apeks Us1 1St Stage

  • Gebalanceerde membraan eerste trap
  • 1 hogedrukpoort
  • 1 lagedrukpoort
129,00 106,61 Excl. VAT
Apeks Us4 First Stage

Apeks Us4 First Stage

  • Gebalanceerde membraan eerste trap
  • 1 hogedrukpoort
  • 4 lagedrukpoorten
139,00 114,88 Excl. VAT
Apeks Xtx200 Fsr 1St Stage

Apeks Xtx200 Fsr 1St Stage

  • Overgebalanceerde membraan eerste trap
  • 2 hogedrukpoorten
  • 4 lagedrukpoorten
299,00 247,11 Excl. VAT
Apeks Xtx200 Fsr 1St Stg 5Port

Apeks Xtx200 Fsr 1St Stg 5Port

  • Overgebalanceerde membraan eerste trap
  • 2 hogedrukpoorten
  • 5 lagedrukpoorten
339,00 280,17 Excl. VAT
Aqualung Leg3nd Din 300 Bar 1e Trap

Aqualung Leg3nd Din 300 Bar 1e Trap

  • Overgebalanceerde membraan eerste trap
  • 2 hogedrukpoorten
  • 4 lagedrukpoorten
379,00 313,22 Excl. VAT
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