The new 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. 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
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