Engineered to excel in extreme conditions, this top-performing regulator meets global expectations for durability, longevity, and style. Featuring a dry environmentally sealed flow by piston 1st stage with patented Dry Air Demand (DAD) technology, ensuring consistent performance at any depth or tank pressure. Its fine-tuned breathing resistance 2nd stage, coupled with a highly reliable 1st stage, delivers a seamless breathing experience. Ideal for water temperatures above 10°C (50°F).