Apeks DS4 + ATX40 diving regulator. It has a balanced design, is equipped with a dry chamber and allows immersion in cold water.
The first stage of the regulator has a unique design, the intermediate pressure increases more than in traditional balanced regulators, the pressure increases with a certain advance, thus the Apeks DS4 provides ease of breathing at any depth, which is especially appreciated in difficult deep and technical dives.
Characteristics of the 1st stage of Apeks DS4:
High pressure port – 1.
Low pressure port – 4.
Characteristics of the 2nd stage Apeks ATX 40: