Swivelling manual add valve (MAV) for diluent gas injection on closed-circuit rebreathers. Features a Key 1 (two tabs) connection for correct indexing and secure fit, providing precise manual control with flexible hose routing.

• Swivelling body for optimal hose orientation
• Manual diluent addition control
• Key 1 (two tabs) fitting

For use by trained personnel and with systems specified for Key 1 connections.