MD3183 (SMD3183) US Coast Guard Type II Recreational US Coast Guard Type V Commercial Mustang Survival new AUTO Inflatable PFD designed for use in severe weather conditions. It incorporates an auto hydrostatic* inflator which is not susceptible to spray, rain or humidity, and is maintenance free for five years from date of manufacture. It also uses a new closure, SecureZIP, that withstands rigorous activity and is easy to repack. *Hydrostatic pressure is applied to objects submerged in water. The hydrostatic inflator needs only to be submerged 4 inches (10 cm) for the hydrostatic pressure to open a pressure valve releasing a firing mechanism, automatically inflating the PFD.
Low Maintenance No inflator maintenance required for five years (from date of manufacture, unless fired
Reliable Inflation Inflates under hydrostatic pressure, the PFD will not inflate prematurely due to rain, humidity or water contact (the PFD can be inflated manually by pulling the activation cord)
Safety Inspection Window Easily view the inflator replacement date and inflator status through the safety inspection window - green indicates ready for use
Hammar 1F auto hydrostatic inflator is maintenance free for 5 years