Apeks DS4 1st Stage

The DS4 First Stage. Dry sealed system for cold water. No tower. 4 medium pressure connections 3/8 UNF 1 high pressure connection 7/16 UNF. The new DIN version DS4 has a metal wheel. As the diver decreases the demand for air. To maintain the supply, the intermediate pressure increases relative to the water depth. In this dry sealed system, the hydrostatic pressure acting on the outer sealing membrane is transferred to the primary membrane via the load transmitter. This first stage utilizes a unique over-tracking membrane design where the intermediate pressure used to the second stage increases more than traditional balanced models as the diver sinks to greater depths. The result is superior breathing performance regardless of depth. All of our first steps are available in both 300B/4260PSI DIN and A-clamp versions, 200 Bar/3000 PSI.
This product is purchased directly from overseas.
Delivery may take some time.
Customs duties are included in this product.