Even with the best laid dive plans, there are times you encounter conditions beyond your control. The Delta 4 is one hot new regulator ready to take on all challengers with improved performance, new features, improved styling, and the new FDX-10 First Stage featuring DVT ( Dry Valve Technology).

• Diver adjustable inhalation effort

• Patented Dynamic Adjustment automatically maintains inhalation effort throughout the dive

• Adjustable Venturi Switch (A.V.S.) for simple Dive/Pre-Dive Adjustment

• Paired with the new FDX-10 Over-Balanced Diaphragm First Stage featuring Oceanic's DVT (Dry Valve Technology)

• Does Not Carry Oceanic Warranty