The cylinder pack has a total volume of 7 L with an unlimited service life, ”NLL” — Non-Limited Life. 

The cylinder pack consist of two cylinders mounted together with a pressure pipe protected inside the handle and is equipped with one cylinder valve.

Compared to the previous Spirolite 2 x 3.4 L cylinder pack, the new design has a greater air volume but still 14% lower weight. 

The cylinder pack design with two cylinders has the following advantages:

• Center of gravity closer to the body
• Possible to move more freely, for example lying on your back when spraying water at the roof
• Easier to drag out a fire fighter in an emergency
• Easier handling between mission since it cannot roll and is easy to place upright

The cylinder valve has a burst disc and the hand wheel is equipeed with safety ratchet to prevent unintentional closing.
An optional pressure gauge is placed inside the handle.

The cylinder pack can be equipped with an optional quick coupling to the regulator unit.