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Aeris A2 2nd Stage Stage Dive Regulator
Downstream Demand Valve
Venturi Control Switch for Dive/Pre-Dive Adjustment
Patented Orthodontic Mouthpiece
Diameter 2.9" (7.4 cm) and Weighs 6 oz (170 g)
ABS/Polycarbonate Composite with Anodized Aluminum Ring
Your regulator is one of the main pieces of scuba equipment that allows you to breathe while underwater. The second stage contains the mouthpiece and purge valve; the purpose of the second stage is to deliver the air into the diver's mouth and to remove any waste (air or other objects) as needed.
Purge Button/Exhaust Valve
The 2nd stage's exhaust valve is a one-way valve that allows the diver's exhaled air to leave the regulator. Basically, it is where the bubbles exit the mouthpiece.
The purge button allows the diver to force air from his/her tank through the regulator to clear any water that may have inadvertently entered the 2nd stage. This button should be fairly simple to manipulate, even when wearing thick dive gloves. It should also only require the pressure from one finger to successfully perform the purge.
Your 2nd stage's mouthpiece is a more crucial piece of equipment than most people believe. A mouthpiece should be comfortable in your mouth; if it feels too big or too small, use a different size mouthpiece.
The A2 second stage is low-profile, durable, lightweight, and a great performer at a great price. The A2 first stage is designed to be easy to maintain and service, and is known by divers and technicians worldwide. AERIS regulators are exclusively designed using the latest 3-D computer modeling techniques. This allows us the ability to model and test performance while still in the early stages of development. The A2's second stage unique deflector vane and housing design diverts airflow from the valve directly to the mouthpiece, producing smooth venturi-assisted inhalation.
The A2's housing is made from an ABS/Polycarbonate composite blend of materials making the A2 both extremely rugged and lightweight, weighing 6 oz (170 g) and nearly neutrally buoyant underwater, reducing jaw fatigue on extended dives. The extremely lightweight cover ring is machined from a solid piece of aircraft aluminum, and then hard anodized, utilizing a unique process to prevent corrosion. The A2 has a small profile with a front diameter of 2.9" (7.4 cm), and now comes with a MaxFlex Hose which is a 30" (76.2 cm) lightweight, flexible, braided hose designed to outperform and outlive traditional rubber hoses. To further reduce jaw fatigue, the A2 features a patented Orthodontic Mouthpiece, designed to accommodate the natural overbite of the human jaw. The A2 is classified as being suitable for use with nitrox breathing gas mixtures containing up to 40% oxygen by volume without the need for special preparation, cleaning or component parts.
A2 Second Stage Features: