Lightweight, high performance second stage. The ATMOS Sport has many of the high-performance features of the ATMOS Pro with the exception of the 2nd stage adjustment knob and pneumatically balanced valve design . This regulator is ideal for the diver who wants high performance without having to manually adjust the 2nd stage while diving.

Conventional second stage without diver adjustment

Adjustable venturi switch

Nitrox compatible to 40%

Paired with your choice of the new AT400 Over-Balanced Diaphragm First Stage featuring DVT (Dry Valve Technology)

AT400 First Stage
High performance over-balanced diaphragm first stage with environmental seal and the added protection of DVT (Dry Valve Technology).

4 LP ports, 2 HP ports for maximum hose placement

DVT eliminates corrosion of critical internal components, bacteria, hose deterioration, and damaged gauges and computers.

Nitrox compatible to 40%