Is the Air Venturi Wingman 74 cu ft PCP tank the same as 6.8L?

[Ritzon5]

Is the Air Venturi Wingman 74 cu ft PCP tank the same as 6.8L? Some tanks have 6.8L on the sticker but no mention on cu ft.

 

[Scotty1]

Is the Air Venturi Wingman 74 cu ft PCP tank the same as 6.8L? Some tanks have 6.8L on the sticker but no mention on cu ft.

Yes, those numbers seem to be used interchangeably to describe the same size bottle.

 

[JackHughs]

Applying Boyle's Law for an ideal gas (P1V1+P2V2), a 6.8 liter tank will "hold" app. 74 cu feet of air at 4500 psi. Because air does not behave as an ideal gas at 4500 psi, the actual capacity is calculated using Van Der Walls constants.

A 6.8 liter tank may be advertised as a 74 cu foot tank, but in reality it holds 66 cu feet of air at 4500 psi at standard temperature.

JackHughs