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Problue: RO-20 2nd stage

€89,50

Non-adjustable second stage
System: Pneumatically balanced for superior depth performance
Material: Brass, stainless steel spring and lever with large oval exhaust valve for minimal exhalation effort
Cold water resistant: Yes
Oxygen percentage: Up to 40%
Respiratory resistance: Not adjustable
Mouthpiece: Orthodontic
Medium pressure hose: Not included