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Blue Reef

Blue Reef Diver-Below Deluxe 4' (1.22m) Surface Marker Buoy

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Regular: $49.95

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About Blue Reef Diver-Below Deluxe 4' (1.22m) Surface Marker Buoy

Blue Reef Diver Below Deluxe 4' (1 22 meters) Signal Tube:

The Blue Reef Diver-Below" Surface Marker Buoy (SMB) is a great Safety Devise that all Serious Divers Carry-on-Every-Dive. The SMB is the Smart-Way for a Diver to Mark their Location when making Safety Stops, completing mandatory Decompression-Stops and Signaling the Boat if they Surface a distance away from the Boat. This 4' (1 22 meters) Long Signal Tube can be Stowed Easily in a Large Pocket or Clipped Out-of-the-Way on your BCD. When the SMB is inflated it is long enough to be easily seen from a distance and sturdy enough to stand up to any weather conditions you may encounter. It is also conveniently labeled with "Diver Below" so you can send it up to mark your location.

Surface Marker Buoy features an easy to use Oral Inflation Valve with Lock to Prevent-Accidental Deflation as well as a Larger Over-Pressure/Dump Valve. The SMB is also equipped with a D-Ring at the Top for attachment of a Light, Strobe or Chemical light for use at night. This Deluxe Model also features a special "No Spill" Second Stage Inflation Option for Quick-and-Easy Inflation from any Second Stage Regulator. Blue Reef's SMB's are available in your choice of Neon Yellow or Hi Viz Orange. Don't risk not being seen in an emergency, pick up a Diver-Below SMB today. The Signal Tube is covered by a 24 month limited warranty.

The Blue Reef Diver-Below Deluxe 4' (1.22m) Surface Marker Buoy is commonly used for All Diving Applications and more. The Blue Reef Diver-Below Deluxe 4' (1.22m) Surface Marker Buoy is most used by customers who consider themselves to be a Advanced, Professional among others. The Blue Reef Diver-Below Deluxe 4' (1.22m) Surface Marker Buoy is popular because customers like the following qualities of the Blue Reef Diver-Below Deluxe 4' (1.22m) Surface Marker Buoy: Easy To Use, Functional, Improves Diving Experience, Lightweight, Solid Construction.

Warranty Information

This product has a limited warranty of 12 months.

Blue Reef Diver-Below Deluxe 4' (1.22m) Surface Marker Buoy Features

  • Great Safety Devise Used by Serious Divers
  • Carry on Every-Dive
  • Smart-Way for Diver to Mark Location
  • Great for Safety Stops, Decompression-Stops and Signaling the Boat
  • Dimensions: 4' (1.22 meters) Long
  • Stowed Easily in Large BCD Pocket or Clipped Out-of-the-Way on BCD
  • Easily Seen from a Distance
  • Colors: Neon Yellow or Hi Viz Orange
  • Conveniently Labeled with "Diver Below"
  • Easy to Use Oral Inflator with Lock to Prevent-Accidental Deflation
  • No Spill Inflation Option
  • Larger Over-Pressure/Dump Valve
  • Top D-Ring for Attachment of Light, Strobe or Chemical Light when Night Diving
  • 2 Year Limited Warranty

Blue Reef Diver-Below Deluxe 4' (1.22m) Surface Marker Buoy Customer Reviews Powered by TurnTo®

Review Summary


(based on 25 reviews)


of respondents would recommend this to a friend.

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Most Liked Positive Review


Nice package, easy to functional.

I was surprised at the quality. also I did not know it had a dump valve for quick deflation and the inflation tube worked great. I did a dry run and it work as expected. I like the added weight on the bottom to make the tube stand up right on the surface. I frequently dive Cozumel and this will make it much safer when surfacing.


Most Liked Negative Review


too wide for BC pockets

Good safety sausage, but quite wide for most BC pockets.

Reviewed by 25 customers

Displaying reviews 1-5

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too wide for BC pockets


from Tempe, AZ, US

Good safety sausage, but quite wide for most BC pockets.


High Quality SMB


from Jordan, MN, US

The SMB is great quality. I ordered a yellow, but got a neon yellow. Works for me though, because the colors are very bright and will get people's attention.




I did quite a bit of review on other similar products that are at lease twice the price. What I didn't find is something that had a mouth inflator and an open end in which you can use at depth with the octo. This one does offer that and was pleased to find out when I received it. You have the option to inflate via mouth or with the oct at bottom. It seals well with the magnet and appears to be a one way flow. So far very impressed.


Quick and wasy surface markrr, especially great when performing shore training lesson.


The instructor Jason fell in love with it at Grand Turks Diving. Loved the small size, the qick connect and especially the air release. Well made product. I owned it for three years before i gabe it to jason. I liked having it in cozumel on drift dives. Sometimes group got really seperated. After giving old one to Jason, Just bought the exact same one i liked it so much. Only negative is the thickness of when it is rolled up makes it tough to fit in a pocket but instead i use sipplied clip to attach to bcd.


Simple and high-quality


This is a very good, no-frills safety sausage I figure will be an important part of my dive kit for years. I think it's a great value.

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Questions & Answers Powered by TurnTo®

Questions about this item:

Shopper  Why Did You Choose This?
BILL T  On sale
ALAN C  Carried constantly for 300+ dives cleaned after the salt water dives. Used on safety stop several times inflated easily.
KEITH W  I needed a replacement for an old Carter lift bag I was using as an SMB. This looks like it will work for me in the tropics.
Antonio A  I dont ever want to come out of the boat an not to be seen. This is a compact model, very brigthly colored, well constructed, with an escape over pressure valve, and easy to inflate with octopuss or by mouth.
JOHN G  I did not want to have an enormous size tube and this was just a right size that fit below my back plate.
JOSEPH M  for night diving visibility on surface
ROBERT E  best price i could find on a SMB with a purge and abilty to inflate with a reg.....
MARIA LUISA T  Must have for emergencies
MICHAEL B  If you dive from a boat, every diver should have a signal to help with visibility in the event of a lost mooring line.
ERIC S  Great Tube ;easy to inflate with good visibility.
RONALD F  Great to have for emergencies and for safety stops - latch on at 15 ft and relax!
Chris H  How wide is it?
KENNETH S  This is the standard size for an SMD. I don't have it in front of me but guess 6" wide when flat (not inflated)
KEVIN F  7 inches
Shopper  Is the lift strong enough to use as a safety-stop hang-line?
MARTIN T  I've only used mine once, and I took my octo, sent a blast of air, and poof, it ripped out of my hand and rocketed to the surface. I would think it would have plenty of lift
MARK D  No, this device is a signal marker, not a hang line, it might help keep you balanced, if you hang with slightly negative buoyancy, but a better idea would be to be comfortable at hovering, while holding the surface marker
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