Brand: Scubapro | Model: D420 Second Stage | Valve Type: Progressive Flow Control Valve | Routing: Reversible L/R Attachment

Carrying on the legendary heritage of Scubapro’s iconic D-Series, the Scubapro D420 Second Stage Regulator combines iconic styling with modern breathing performance. Powered by the air-balanced Progressive Flow Control Valve, the D420 delivers abundant, effortless airflow that rivals natural surface breathing. Its durable fiberglass-reinforced nylon casing houses a lower-mounted diaphragm to utilize hydrostatic pressure gradients for effortless inhalation, while internal winglets direct airflow smoothly toward the exhaust valve.

Key Features & Performance Highlights

• Progressive Flow Control Valve: Delivers abundant, natural airflow with surface-like breathing smoothness across all depths.
• Reversible Hose Attachment: Allows low-pressure hose connection on either the left or right side for versatile tech or recreational rigging.
• Top-Mounted Dive/Pre-Dive Switch: Top casing switch with an ergonomic thumb tab lets you adjust airflow direction instantly right out of the valve.
• Lower Diaphragm Placement: Positioning the diaphragm in the lower casing section leverages water pressure gradients in the upright position for easier inhalation.
• Internal Airflow Winglets: Casing winglets direct air directly toward the exhaust valve, significantly reducing exhalation effort.
• Responsive Purge Button: Large, accessible purge button is easy to locate and operate, even while wearing thick cold-water gloves.
• Compact Exhaust Tee & Super-Flow Hose: Compact tee deflects exhaust bubbles away from your field of view while the oversized-bore Super-Flow hose maximizes air delivery.

Technical Specifications