ATX Stage 4 Set
£369.00 RRP £438.00Please note: This item cannot be shipped outside the European Union - learn more
The Apeks ATX Stage 4 Set is the predecessor of the XTX range and has been used for many years around the world. Tough and simple construction makes the ATX preferred by many divers with modern balancing and cold water performance.
The ATX and DS4 combination is made to be simple and to work smoothly. The ATX delivers a quiet breathe and only has one adjustment, the Venturi. The Venturi lever prevents the 2nd stage from freeflowing as readily on the surface by redirecting air inside the 2nd stage.
high-performance regulator boasts an over-balanced first stage coupled with a pneumatically balanced second stage.
The smooth, quiet breath is sure to enhance your diving enjoyment.
Suitable for coldwater use thanks to its first stage environmental dry seal and second stage heat exchanger.
Compatible with EAN40 out of the box.
Uses the DS4 first stage
Unique over-balanced, diaphragm design - as the diver descends, the over-balancing feature allows the medium pressure gas in the hose to increase at a rate faster than ambient. This results in superior performance at depth.
1 HP port and 4 MP ports are available.
An environmental dry system keeps water out of the main spring chamber thus preventing ice buildup and keeping silt and contamination out.
Available in DIN and yoke.
Pneumatically-balanced second stage results in smooth, easy breathing.
The large purge button on the ATX is easy to operate even with thick gloves.
The integrated venturi control provides a performance boost at depth while preventing unwanted freeflow at the surface.
An extremely efficient exhaust valve improves the breathing performance of the regulator.
The Comfo-bite™ mouthpiece virtually eliminates jaw-fatigue.
A heat exchanger (patented) which surrounds the valve mechanism, dissipates the cold caused by gas expansion while drawing in the warmth of the ambient water.
Offers a compact, integrated exhaust tee.
Over-balanced diaphragm design, environmentally sealed 1st stage
Number of HP ports 1 (7/16" UNF)
Number of MP ports 4 (3/8" UNF)
First stage exterior Chrome over marine brass
Pneumatically balanced 2nd stage
Integrated Venturi Lever
Exhaust tee Diver Changeable - comes with 2 sets
Heat Exchanger for freezing resistance
Overall work of breathing (WOB) scores Avg. 0.85 joules/liter
Please Note this package DOES NOT INCLUDE a BCD or Drysuit LPI hose. These come with your BCD or Drysuit or can be purchased Here
We offer free standard delivery on orders over £50. Learn more.
Standard delivery is £3.70 for orders under £50. You will receive your order 2 - 4 days from the date of despatch.
Next Working Day is £6.50.
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).
Extended Christmas Returns
Orders placed between the 1st of November and the 15th of December (inclusive) will be subject to an extended returns period. You will be able to return items purchased during this period up until the 12th of January.