GRP tunnels are available in several lengths for each thruster model.
They are purpose-built for our thrusters and provide ultimate strength, accuracy, and osmosis protection to ensure an easy and safe thruster installation.
The wall thickness is adapted to each thruster’s power and boat size.
Unlike most other thruster tubes, they are not just spun with a single thread, but in fact, contain several layers of full rowing mat.
4mm GRP Tunnel for SE 30/40