Dive Alert SMB+ Surface Marker Buoy Accessories Snorkeling Fins 5”-Powered by three LR44 alkaline

5”-Powered by three LR44 alkaline batteries

architects

75" blade length-9

Purge valve: N/A

Dive Alert SMB+ Surface Marker Buoy Accessories Snorkeling Fins 5”-Powered by three LR44 alkalineThe DiveAlert SMB (surface marker buoy) features Semi Closed Circuit (one way valve) construction, which prevents air spill at the surface. The DiveAlert SMB (surface marker buoy) features Semi Closed Circuit (one way valve) 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