Dive Alert SMB Surface Marker Buoy Plastic Inflation Nozzle DMB4PO - Orange

SMB Surface Marker Buoy DMB4 The DiveAlert SMB (surface marker buoy) features Closed-Circuit construction, which prevents air spill at the surface. Inflate on the surface to attract visual attention or redundant flotation. Inflate at depth to send up as a surface marker. Solas reflective tape (Coast Guard approved) across the top of SMB creates better visibility day and night. An Over-Pressure Valve (OPV) prevents bursting and easy air dumping. 45 inches long x 5 inches wide = approximately 8 lbs. of lift. Nylon D-ring on the top allows for easy attachment of a light or slate, along with a stainless steel D-ring at the bottom for attaching a spool or reel. 400 Denier polyurethane coated nylon material.