APEX Tec-Manifold / DarkLine / M25 / Air 300 bar (with case)

The NAUTEC APEX Tec-Manifold DarkLine is designed for compressed air double cylinders with flange diameters of 140 or 171 mm and an operating pressure of 300 bar. This professional valve trim delivers maximum reliability, precise gas control, and rugged DarkLine styling for demanding technical diving applications.

The pro valve trim consists of:

• 2 × Nautec SL valves (SL-L and SL-R)

• 1 × radially sealing TEC manifold

• 2 × auxiliary valves Air 300 bar

• 2 × solid brass retaining caps

• 2 × sealing bolts

• Full-Metal-Core Rubber Knobs

• 2 × Nautec MicroMaxx filters

• 2 × solid brass blind stops for G 5/8” regulator connections

All valve outlets can be shut off individually. The gas flow between both cylinders can be safely isolated using the Nautec TEC manifold located between the two flanges. Opposite the handwheel is a 7/16″ connection port, suitable for a stub pressure gauge or a dive computer transmitter.

For other cylinder diameters, please contact us and provide the exact required length (see PDF).

The pro valve trim is 100% oxygen-compatible (in unused condition) and lead-free, making it suitable for advanced technical diving configurations.

⚠️ Important notice:
Do not attempt to repair NAUTEC valves yourself.