Leshiy V2 interchangeable tank size

The brochure video shows the auxiliary tanks supporting .22L, .35L, and .45L:

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Would be nice if they used a bottle with valve, so you can swap without depressurizing.

That’s a good idea then you could carry spare bottles with air instead of a spare tank

That is a bad idea. If the bottle cannot be depressurized then you need to buy the whole back part with valve. More money for Ed.

A simple check valve, with bleed screw solves everyone's problems and its cheap.