Si Tech - Drysuit Exhaust Valve Castine 145 further improving upon one of

further improving upon one of our all-time bestselling helmets

7V for a total of 6700 mAh

Casing design features inner winglets that direct airflow towards the exhaust valve

frameless and with a Pure Clear lens for maximum optical clarity

We design all our goggles to provide a perfect fit and excellent insulation combined with our helmets

Si Tech - Drysuit Exhaust Valve Castine 145 further improving upon one ofThe Argo Exhaust Valve is a high performance valve suitable for all areas of recreational and technical diving. As with all SI TECH Exhaust Valves the Argo is extremely sensitive for variations in pressure and provides the diver with excellent buoyancy control. The design of the top lid makes it ideal to use in conjunction with heavy duty gloves and still evacuate proper amount of gas during ascent. All SI TECH Exhaust Valves has built in safety