1,3 Liter:
The Armotech air tank is a composite bottle with a stainless steel core.
Still it is light, small and Pi approved.
The Volume of this bottle is 1.1 liters (68ci) with 4500 psi (300 bar)
It comes without a regulator.
Technical details
* This tank does not include a regulator.
DYE / ARMOTECH