Filtering the water from Coca Cola

Pretty cool video showing an OKO filter turning Coca Cola back to water.
The guy in the video says the water is sweet tasting, but no longer tasted like the original product.



You can buy these filter bottles for about $20 in the USA, seems a bit expensive to me.
I suspect pouring liquids like this through the filter ruins it, hence the small amount the guy uses.

Awfully expensive to just get a glass of carbonated high fructose corn syrup water.
I wonder what the throwback or Mexican pepsi would taste like?