XDEEP Closed DSMB ( 140 cm )
Can be inflated easily orally or with a LPI hose and the over pressure vavle allows expanding air to escape to prevent damage.
The top of the SMB has a clear pocket for notes that can be sent to the surface to communicate with surface cover.
Webbing loop at the base of the SMB aids easy reel attachment and a bungee loop holds the dSMB wrapped up when not in use.
Over Pressure Valve