a compex subject if you don't know what the terminology means!

Z 24g - twenty four gram co2 cylinder, commonly used on kids automatic gas life jackets.

thirty three gram co2 cylinder, commonly used on adult 150N gas lifejackets.

thirty eight gram co2 cylinder, less common, found on 150-175N gas life jackets.

sixty gram co2 cylinder, found on 275N gas life jackets.

Lifejacket buckles and clips are commonly made from ABS which is a very tough form of plastic.

term used to describe a life jacket that only becomes buoyant upon filling with gas.

term used to describe a life jacket that only becomes bouyant upon activation, which is automatic upon entering water.

name given to an automatic firing capsule.

the part of a gas life jacket that inflates during firing and provides the bouyancy.