Features:

• Adjustable balanced diaphragm.
• Two high pressure and four low pressure ports.
• Side-flow design.
• 30-degree inline swivel.
• Neutrally buoyant underwater.
• Adjustable inhalation effort with knob.
• Automatic adjustment for changes in depth.

Description:

This combination is exceptionally lightweight and durable. The revolutionary design of this First Stage manifests a myriad of benefits. Intermediate pressure can be adjusted outside the First Stage and it is fully adjustable with the Second Stage. The adjustable balanced diaphragm combined with the ABS composite construction ensures advanced performance and rugged durability.