Rating: OTS Mantis FFM Surface Breathing Valve
Reviewer: Kent Carlson, - View all my reviews
Pros: A must if you wish to breath on the surface without using tank-air. Easy to install, find on the surface, and use (screw/unscrew). Of the two designs of which Im familiar, the scalloped edge with rectangular breathing holes seems to be easier to use/breath from (when compared to the knurled edge/circular breathing hole variety).
Cons: Cost is very high (~$150). If installing a com unit in the left port and SBV in the right port, access to the SBV could be limited by the regulator (or at least made a little more difficult).
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214 out of 427 people found this review helpful.
Rating: surface air valve
Reviewer: DOUG SEILER,
a bit expensive, but have to have it
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81 out of 143 people found this review helpful.
Rating: great addition to mask
Reviewer: Glen C., - View all my reviews
you gotta have this valve with the mask...makes all the difference in the owrld..and installs in seconds.
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182 out of 401 people found this review helpful.
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