I know nothing about this companies operations (I only heard about them a few weeks ago) but I would wager money that they entirely outsource their production and distribution operations and what they consider their "secret sauce" or the actual thing which is actually valuable to future growth of the company is entirely their marketing and sales operation.
This is not (entirely) to be diminutive of what they are doing. Convincing people to spend $2/can for filtered tap water is impressive.