Innovative Surface Marker Signal Tube 6' w Dump Valve

This unique signal tube comes with an opening in the bottom of the tube and is weighted by lead. This allows diver to inflate tube by free flowing air from the regulator. Unique internal membrane keeps air inside until released by activating dump valve. In addition, this surface marker tube can be inflated with screw down oral inflator. Also known as SMB, Safety Sausage, Signal Tube or Surface Marker.

• 6 foot signal tube comes with oral inflator, regulator inflator opening, dump valve, safety whistle and vinyl light stick holder
• Comes with an opening in the bottom of the tube and is weighted by lead
• Keeps air inside until released by activating the dump valve