• Sale
  • Regular price £31.75
Tax included.


Be seen - Be safe

THE AP SMBC - the original self-sealing "sausage" Surface Marker Buoy    

The AP SMBC (SMB closed or self-sealing) was developed by the same UK design team at AP Diving that produced the world-beating Commando BCD. Measuring 1.4m x 20cm this sausage shaped SMBC was developed in the early 1990s and quickly became a mainstay of a divers’ kit.

  • Available in Red, Red & Yellow or Yellow
  • No accidental deflation on the surface due to a unique self-sealing duckbill valve in the mouth
  • Handy top eyelet for attaching message slate, ID marker or reflector 
  • Rolls up neatly. Store in your pocket or in the custom SMB pouches on AP BCDs

Easy to use and effective, the SMBC is inflated by purging a regulator or air gun into the open end. In the mouth, a unique self-closing baffle – or duckbill valve – forms an airtight seal immediately on inflation, preventing the buoy from accidentally deflating on the surface.

An over-pressure/dump valve prevents the buoy from being over-inflated and potentially damaging the seams. It also allows easy deflation after use. Because the baffle prevents air spillage the SMBC stays inflated so it’s easy for surface crew to track or for a diver to hold aloft and wave if separated from the boat.

Simply attach a line or reel and you have a superb delayed action decompression marker buoy. Alternatively, it can be inflated at the start of a dive and towed as a standard surface marker. The SMBC is pulled upright by tension on the line and clearly marks the diver’s position.

High Visibility

All AP SMBs now come in high visibility contrasting Red and Yellow or all-Yellow versions – ideal as Signal Buoys. Use as an emergency signal to warn surface support of an impending ‘out-of-gas’ situation (or any other pre-arranged communication).

SMBs roll up neatly for pocket storage, external attachment or stowage in the custom SMB pouches now standard on the  Commando and Commando Explorer BCDs.