OTS Spectrum Mask ABV kit

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The Ambient Breathing Valve (ABV®) allows a diver to breathe ambient air while at the surface, thus conserving tank air!The ABV® was designed with simplicity, durability and reliab ility in mind. Installtion only requires a few minutes!The Spectrum ABV® comes with everything you need to start conserving air! Includes : Ambient Breathing Valve (ABV®)OTS WrenchPrinted Instructions Show more