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Regulator set XL4

XL4DB4XL4
Apeks
The 1st stage DB4 combines the time-tested DS4 platform with MTX technology. The result is a compact, extremely durable regulator.
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Description

Regulator APEKS XL4 with XL4 octopus

The DB4 Stage 1 combines the time-tested DS4 platform with MTX technology. The result is a compact, extremely durable regulator. A robust dry chamber closure with a reinforced membrane helps prevent ice build-up while protecting the regulator from impact. A heat exchanger around the diaphragm increases the temperature of the breathing mixture inside the 1st stage. Classic shape is suitable for most configurations - single-bottle diving, twin-bottle diving, stage.

Despite its minimal size, the XL4's very lightweight 2nd stage has a classic solid front cover with a circular shower button that is easy to operate even with thick gloves. The low weight and clever shape, combined with the comfort mouthpiece, significantly reduce jaw fatigue during long dives. Exhaled bubbles are deflected out of the diver's field of vision by a rubber exhalation deflector, inspired by the Apeks TX series.

XL4 is also an ideal regulator for the stage. The perfect solution for technical divers who are serious about saving weight and overall gear volume on their expeditions.

The XL4/DB4 regulator has been tested and certified in accordance with EN250A (50m, 2°C, simultaneous breathing from main and backup second stage).

1st stage DB4

  • membrane balanced
  • dry chamber sealed - reinforced diaphragm integrated in a shockproof enclosure
  • massive heat exchanger around the dry chamber and main membrane
  • 4 x MP outlet 3/8" UNF
  • 1 x HP outlet 7/16" UNF
  • location of MP outlets: radial
  • material: brass
  • finish: satin chrome
  • weight: 630 g
  • DIN 300 bar, all-metal fitting
  • EN250A

Stage 2 XL4

  • pneumatically balanced
  • large shower button with open self-cleaning design
  • ergonomic venturi control
  • COMFO-BITE mouthpiece with antibacterial treatment
  • highly durable, rubber exhaust deflectors
  • standard hose connection to second stage
  • weight: 155 g

2nd stage XL4 OCTOPUS

  • pneumatically balanced
  • large shower button with open self-cleaning design
  • ergonomic venturi control
  • standard mouthpiece with antibacterial treatment
  • highly durable, rubber exhaust deflectors
  • standard hose connection to the second stage
  • weight: 150 g

Hose

  • 0.75 m, FLEXI, black, 3/8" UNF connection to first stage, 9/16" UNF to second stage
  • 0.9 m, FLEXI, yellow, 3/8" UNF connection to first stage, 9/16" UNF to second stage
Product Details
XL4DB4XL4

Data sheet

Cold water
ano
Type 1.degree
Membrane
Balanced
ano
Number of HP outputs
1
Number of LP outputs
4
Travel version
ne
2nd stage connection
News
1st stage connection
DIN
Operating pressure
300 bar
LP output in the axis
ne
Regulation of inspiratory resistance
ne
Venturi effect limitation
ano

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