The new D420 combines the iconic design of the original D-Series second stages with advanced breathing performance technology. It features a balanced valve inside a metal structure for abundant airflow and smooth breathing. The durable fiberglass-reinforced nylon casing allows for flexible rigging. The dive/pre-dive system includes an adjustable airflow direction switch. The efficient purge button gives the D420 its unique face.
Uniquely shaped fiberglass-reinforced nylon casing carries on the D-Series heritage with the latest advances in breathing performance technology
Dive/pre-dive system includes a switch on the top of the case with a thumb tab for adjusting the direction of airflow right out of the valve.
Casing design features inner winglets that direct airflow towards the exhaust valve, creating a dramatic improvement in exhalation effort.
Diaphragm is located in the lower section of the casing to take advantage of the pressure gradient in the upright position, making breathing even easier.
Reversible hose attachment allows for either left- or right-side LP hose connections for maximum rigging flexibility.
Compact Hi-Flow mouthpiece improves airflow as well as mouth comfort, fitting all mouth sizes, from largest to smallest.