Zeo + FDXi Regulator

The 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.

The ZEO/FDX-i combination is everything you need for a sublime breathing experience at any depth and in any environment. From the balmy tropical waters of the Caribbean to the extremes of cold water diving’s best dive sites, the ZEO will perform with reliability, consistency and comfort and makes taking your favorite regulator literally anywhere, that much easier.

Second Stage ZEO

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.

FEATURE & FUNCTIONSZEO SECOND STAGE (METAL VALVE SYSTEM)
Valve TypeDEMAND
Adjustment(s)KNOB / PRE-DIVE SWITCH
Balancing SystemPNEUMATIC
Integrated Purge ButtonYES
MouthpieceORTHODONTIC W / TABS
Nitrox CompatibilitySTANDARD TO 40%
AmbidextrousNO
Integrated SwitchYES
Weight (without hose)7.2 OUNCE
Dimensions (front profile)2.3 INCH x 3 INCH (OVAL SHAPE)
Minimum Creaking EffortDIVER ADJUSTABLE
Factory Set Inhalation Effort0.0~2.5 IWC
Work of Breathing0.86
First Stage

FDX-i

Specs 1st stage

FEATURES & FUNCTIONS

FDX-i

Valve TypeBALANCED DIAPHRAGM
Primary MaterialFORGED MARINE BRASS
Low Pressure Ports4
High Pressure Ports2
FIXED YOKE KNOBYES
Nitrox CompatibilitySTANDARD TO 40%
300 BAR DIN FittingOPTIONAL
Sealed Valve DesignYES
Environmental ProtectionYES
Weight (Yoke)21 OUNCES
Factory Set Intermediate Pressure138-142 PSI
Pressure Drop9 PSI