• excellent work of breathing, T-pieces in the same place as OTS CLs
• Counterlungs are in front of the wing, as close to lung centroid as possible
• anti-collapse device inside to ensure gasflow with wing fully inflated
• high quality manual add valves with tactile differentiation between Oxygen and Diluent valves for low vis operation
• attached with Fastex releases for easy removal. Adjustable in the front and back for precise positioning
• Velcro loops on underside for precise routing over the shoulders
• dump valves at the bottom for flood recovery
• rock solid construction
  • Cover: Outer abrasion resistant shell made from Cordura 2000
  • Bladder: inner bladder made from RF welded CORDURA 560 with PU coating. It resists hydrolysis, low temperatures, and hydrocarbons.
• NO ADV or OPV

This is an advanced experimental counterlung system. Do not use if you are not comfortable diving without ADV or OPV


ADV is available as an add on into the inhalation T-piece. See below.

Delrin Manual Add valves




now available with Low Profile T-pieces