UML Mk5i Automatic LifeJacket Cap
UM (United Molders) MK5i Auto Cap is a screw on cartridge which activates on contact with water.
This will replace the cap fitted to most SeaSafe Lifejackets. United Moulders Cartridge will fit all automatic lifejackets that use the UML Mk5 and UML Mk5i type inflator.
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