Automatic bobbins are now available to be purchased separately. As part of the maintenance schedule, bobbins should be replaced on a regular basis. Refer to your Owner's Manual for maintenance schedule.
Bobbins are a replacement part for the Halkey-Roberts type automatic inflators. Bobbins dissolve when immersed in water and cause the CO� cylinder to inflate the PFD. All Mustang Survival automatic inflatable PFD's come with cylinders and bobbins.
