This complete regulator set features an Apeks DS4 dry sealed 1st stage complete with an ATX40 second stage and ATX40 alternate second stage. We have also included a free twin depth and pressure console to complete the package!

The DS4 1st stage offers four low pressure ports (3/8 UNF) and one high pressure port (7/16 UNF). The DS4 is environmentally sealed and therefore suitable for use in both cold and warm water.

The ATX40 second stages are balanced second stages with ergonomic diver adjustable venturi control. A robust and extremely reliable unit the ATX40 incorporates Apeks highly efficient heat exchanger and therefore suitable for both warm and cold water use.