JZ System - Backmounted Counterlungs for CCR Liberty - Delrin MAV

• 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 valve at the bottom of exhalation CL 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 (dewatering dump valve on exhalation CL)

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


ADV T-piece is available as option. See below.

Delrin Manual Add valves




available with Low Profile T-pieces

Setup and configuration video