APEKS ATX40 / DS4 Regulator

APEKS ATX40 / DS4 - Inexpensive and reliable regulator

The ATX40 regulator with the Dry Sealed Turret (DST) 1st stage is no longer available, but we are pleased to offer the ATX40 second stage with Apeks tried and tested DS4 1st stage. This is available with either an A Clamp first stage or a 300 bar DIN fitting.

The ATX40/DS4 features a smaller, lighter, lower profile 2nd stage than the TX40 2nd stage.

We believe that your regulator should be as flexible as you are. So the ATX40 retains our well proven diver adjustable venturi together with a 'technician-adjustable' balanced second stage and balanced first stage. The combination of this second stage and the DRY SEALED first stage offers an excellent regulator for diving anywhere in the world at a very competitive price. The design of our second stage offers a smooth breathe which enhances your dive enjoyment.

Save money on top quality equipment. Purchase your regulator and octopus together in one of apeks stage3 sets.

Specification of APEKS ATX40 / DS4: 

First Stage DS4:

• No swivel turret;
• 4 medium pressure ports, 4 x 3/8" UNF;
• 1 high pressure port, 1 x 7/16" UNF;
• Environmentally dry sealed system;
• Polished chrome finish;
• Balanced for superior performance.

Second Stage ATX40:

• Pneumatically balanced system - reduces breathing effort;
• Heat exchanger for cold water diving;
• Integrated Venturi Control;
• Micro adjuster;
• Extremely efficient exhaust valve;
• Compact integrated exhaust;
• 25% lighter than TX models;
• Comfo Bite mouthpiece - for comfort and to reduce jaw fatigue.

Total Regulator Weight: 990g