Rebreather Divers And Open Circuit Divers Alike Will Appreciate Our Hybrid Surface Marker Tube. An Oral/power Inflator Makes Inflation Simple For Rebreather Divers Who Do Not Have Easy Access To A Regulator For Inflation. Likewise, A Funnel-shaped, Anti-spill Baffle Allows Open Circuit Divers To Inflate This Smt With A Regulator. A Standard Over Pressurization Valve Allows Excess Gas To Vent During Ascent And/or To Depressurize The Bag At The Surface. Built-in Carrying Sleeve. Ansi Safety Orange. Made In The U.s.a.