he pneumatically-balanced ZEO is an engineering marvel of precision, durability and comfort. Its durable chrome-plated marine brass metal valve delivers a phenomenal breathing experience, improves cold-water performance and helps recirculate moisture from exhalation to prevent dry mouth. The breathing adjustment gives the diver a wide range of control to precisely set airflow throughout the dive.

The ZEO comes standard with an in-line hose swivel, inhalation effort control, dynamic adjustment technology dive/ pre-dive switch and a super comfortable orthodontic mouth piece featuring an inline ball swivel on the hose connection to eliminate the binding that can cause jaw fatigue.

The cold-forged, over-balanced diaphragm FDX-i first stage is environmentally sealed. The in-line design limits the pressure loss inherent in “L” type first stage designs making the FDX-i more efficient and lighter due to its compact form.

Second Stage ZEO

• Pneumatically balanced second stage automatically maintains consistent inhalation effort throughout dive
• Diver adjustable inhalation effort allows the diver to control a desired level of airflow at any time.
• Patented Dynamic Adjustment automatically maintains inhalation effort throughout the dive
• Adjustable Venturi Switch (A.V.S.) for simple dive/pre-dive adjustment
• Inline ball swivel reduces jaw fatigue
• Orthodontic mouthpiece
• Paired with the FDX-i first stage

First Stage FDX-i

The FDX-i in-line design provides an improved flow rate, greatly reduced weight and more ergonomic port positioning for better hose routing when compared to the classic right angle first stages.

• Precision Cold Forged
• Reduced weight
• Pneumatically balanced – consistent performance at any depth
• Environmentally Sealed diaphragm – cold water ready
• 4 Low Pressure and 2 High Pressure Ports
• Angled ports for ideal hose routing
• Improved flow rate over standard right angle first stages.