First Stage:

• Balanced-piston first stage for constant intermediate pressure control over a large range of supply pressures.
• Patented Dry–sealed spring chamber maintains clean interior and excludes first stage icing in cold water.
• High capacity inlet filter.
• Four LP ports & two HP ports for versatile hose routing options.

Second Stage:

• Larger diaphragm for optimal response to inhalation.
• Larger exhaust valve for decreased exhalation resistance.
• Resilient silicone rubber seat.
• Precision - ground stainless steel cam and Delrin lever for smooth effortless breathing.
• High impact housing for rugged applications.