Shop By Brand
The Apeks Nitrox DS4 1st Stage with M26 Thread provides 100% Oxygen compatibility and superior breathing performance in any depth.
The unique over-balanced diaphragm design has number of advantages over piston type first stages, especially when combined with Apeks Dry Sealed System, which is ideal for cold water diving or warm water diving. It offers outstanding gas flow, easy maintenance, simple adjustment of intermediate pressure and a sealed mechanism totally protected from all types of contamination and freezing.
This unit is extremely reliable in cold water and compact as it has no swivelling turret -both features which makes this first stage popular amongst tech divers. It is a great choice for expanding into twinset or redundant system configurations.
30 DAY RETURNS
If you change your mind, it doesn’t fit, or you become inflicted with buyer’s regret - that's OK!
Mike's Dive Store offer an extended returns policy of 30 days - so you can be rest assured if the suit, piece of diving equipment or gift doesn't suit then just send it back and we will either exchange it or offer a full refund less any postage costs. Too easy!
Please note that there are some special order items on our website that will be subject to a 20% re-stocking fee but we will let you know about these items before we special order them so that you are aware of this. If this is the case we can always help with correct sizing so that we minimise the risk of return.
For step-by-step instructions click here
Please note: We cannot ship Apeks items outside the EU