Apeks US4/AT Oxygen

This high-performance regulator boasts an over-balanced first stage coupled with a pneumatically balanced second stage.

The smooth, quiet breath is sure to enhance your diving enjoyment.

Second Stage

• Pneumatically-balanced second stage results in smooth, easy breathing.
• The large purge button on the ATX is easy to operate even with thick gloves.
• The integrated venturi control provides a performance boost at depth while preventing unwanted freeflow at the surface.
• An extremely efficient exhaust valve improves the breathing performance of the regulator.
• The Comfo-bite™ mouthpiece virtually eliminates jaw-fatigue.
• A heat exchanger (patented) which surrounds the valve mechanism, dissipates the cold caused by gas expansion while drawing in the warmth of the ambient water.
• Offers a compact, integrated exhaust tee.

Firts stage:

• Unsealed system for warm water.
• No turret
• 4 medium pressure ports 3/8" UNF
• 1 high pressure port 7/16" UNF
• Available in both DIN and yoke fitting.