"THE MOST INNOVATIVE REGULATOR OF 2005!"
Scuba Diving Magazine, December 2005

2005 ScubaLab Tester's Choice "Hooked up to the breathing simulator, the Delta 4 delivered Very Good to Excellent performance in all the RMV/depth categories, earning the highest simulator scores of all the regs in this price group (under $500). In ocean tests, the reg was also a champion, collecting the highest total ergo score in its price group. In particular, divers liked the swivel and the mouthpiece, and felt both the adjustment knob and dive/pre-dive switch were easy to use, even when wearing gloves." Read the complete article

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)