Neptune 1.8m Closed DSMB

The Neptune 1.8m Closed DSMB is unique in that the diver can fill the tube at depth by holding the open the bottom of the SMB, and either exhaling or purging the regulator. 

Features:

• Over Pressure Release Valve allow the SMB to surface without rupturing 
  
  
• Oral inflation valve allows for easy inflation 
  
  
• Bright multi coloured design to stand out