IST O20 Non-Adjustable OctopusLightweight pneumatically balanced design.Special stainless steel rocker arm and dynamic adjustable valve create smooth air supply on demand. Exhaust cover with curvature which directs bubbles away from field of vision.FEATURESSame features as the O-10 but without the adjustabilityBuilt-in heat exchangerLight purging actionNeutrally buoyant, less jaw fatigueComes with high quality 90cm (36") LP hose

IST O20 Non-Adjustable OctopusLightweight pneumatically balanced design.Special stainless steel rocker arm and dynamic adjustable valve create smooth air supply on demand. Exhaust cover with curvature which directs bubbles away from field of vision.FEATURESSame features as the O-10 but without the adjustabilityBuilt-in heat exchangerLight purging actionNeutrally buoyant, less jaw fatigueComes with high quality 90cm (36") LP hose