The diaphragm-compensated first stage ensures constant, fluid airflow regardless of depth, cylinder pressure or breathing rate.

The first stage mechanism does not come into direct contact with water or any pollutants that could affect its operation.

The control chamber stays dry, increasing cold resistance and ensuring constant flow even in the coldest water.

The body is equipped with two high pressure outlets and four high flow outlets for maximum flow and optimal hose distribution.

For technicians, it is possible to adjust the medium pressure without opening the body to more easily optimize the performance of the first stage.

Available in two configurations: DIN 300 bar and INT 232 bar caliper.

The DIN version features an ergonomic thumbwheel with a soft coating over a reinforced black nylon frame.

Air flow at 200 bar: 6,900 l / min.

Medium pressure: 9-9.8 bar.

Compensated valve system that limits inspiratory effort regardless of the depth and pressure of the bottle.

This fiberglass reinforced nylon model features SCUBAPRO’s widest second stage housing and diaphragm for breathing comfort
optimal, regardless of the position in the water.

L’utilisation de composants métalliques (dont le tube de la soupape d’admission) améliore la résistance en eau froide.

The high-flow exhalation valve reduces exhalation effort and provides better breathing comfort.

Adjustment of inspiratory effort using a dial.

Reversible configuration of the hoses allowing an optimal organization, in particular in teak diving.

Large diameter hose to ensure maximum air flow with each breath.

Comfortable orthodontic mouthpiece, pleasant in the mouth and does not obstruct the flow of air.

Air flow at 200 bar: 1,800 l / min.