The venerable, workhorse-like diaphragm first stage is more than capable of delivering a steady supply of air, which makes this regulator set easy to breath underwater.

R2 first stage features

• This balanced diaphragm 1st stage, with its ambient sensing technology, is able to provide steady air supply to the second stage irrespective of pressure and / or depth.
• The innate design ensures the critical parts of the 1st stage is environmentally sealed off from the outside, leaving it free off contamination or silt built up, which could lead to serious corrosion.
• The small moving parts at the heart of the regulator means low friction and low maintenance so it can work harder to deliver air to the where it is needed down stream.
• Constructed from the brass and thickly nickel electro-plated to ensure the strength and reliability
• The 2 high pressure and 4 low pressure ports are strategically placed for convenience in equipment setting up.

• Pneumatically balanced delivery system means significantly reduced breathing resistance comparing to conventional design
• Dynamic diver adjustable flow button allows for quick tuning according to breathing demand
• The vane near mouthpiece can help directing air flow towards the diver for effortless breathing or to be tuned into a gas conserving position
• Exhaust cover with curvature directing bubbles away from field of vision
• Light purging action
• Equipped with NEW energy-saving hypoallergenic silicone mouthpiece with long tabs spreading the biting force more evenly!