An inner tube ITS as specially designed for standard buoy and replaces contemporary car inner tubes.

 Their use greatly increases the usefulness of the buoy in many ways. The inner tube dimensions correspond exactly to the buoy when due to the used flexible but durable material the inflated buoy has regular shape and even greater buoyancy. The inner tube material is very good, more solid and durable and does not age as quickly as common rubber inner tubes. The last and major advantage of new inner tubes IT is the inflation and deflation handling (based on the variant of the buoy and used valve, respectively). There is a version with normal safety valve ITLA or more sophisticated version with plastic valve ITLB.

Advantages of using Apneautic inner tube IT:

• Buoy has good shape and is correctly filled with inner tube. Therefore, the total load is better put on the buoy.
• The IT inner tubes have much greater volume, so the buoyancy is higher and withstand bigger load on the rope.
• The greater buoyancy guarantees better stability of the buoy on the water surface, safety and smaller energy losses during ascend.
• Used materials guarantee higher mechanical resistance against penetration and tearing as well as against environmental influences such as chemical effect of salt water etc.
• Very easy manipulation and wet maintenance.

 Inner tube volume: 60 – 70 liters depending on pressure

 Material: PVC. Thanks to the strength of the material the safety valve is not needed.

 Valve: Boat plastic valve is used in the version ITLB.