Ocean Design Predator Octopus Adjustable Ring - Stainless Steel Gothic Jewelry for Men & Women - Perfect for Halloween Costumes, Cosplay, and Punk Fashion Accessories

Most 2^nd stage demand valve regulators are calibrated and then tuned for middle of the road performance. Non adjustable 2^nd stage do not allow the diver to choose the performance level they would like from their regulator

The Ocean Design adjustable 2^nd stage allows you to increase the performance of your regulator with the twist of a knob. This gives you the choice you need if you either choose or end up in a situation where extra performance or air maybe needed.

Key Specifications/Special Features:

• Valve type: Demand
• Adjustment: Knob & pre dive switch
• Balancing system: Mechanical
• Integrated purge button: Yes
• Mouthpiece: orthodontic
• Nitrox compatibility: Standard to 40%
• Weight (without hose): 180g
• Dimensions (front profile): 67mm
• Minimum cracking effort: Diver adjustable
• Factory set inhalation effort: < 2.0 inches
• Work of breathing: 0.9 Joules (average)
• Warranty: 12 Months
• Limited lifetime warranty: Yes