Powerful performance. Dependable design. 

The O’Pro Osprey / F400 is a high-performance, all-round regulator system designed for divers who want exceptional reliability, smooth breathing and rugged durability in every environment. Pairing a balanced diaphragm F400 first stage with a pneumatically balanced second stage, this regulator delivers consistent airflow at all tank pressures and depths — making it a favourite among recreational and advanced divers alike.

Perfect for temperate-water diving, the Osprey/F400 is engineered for cold-water stability, long service life and a rock-solid breathing experience in all conditions.