Does not exist here in Qatar. The only distilled water is those little bottles for cars which is not intended for human consumption! It is more acid than normal.
The best solution is to buy your own distiller and use a local bottled water and distill it this way.
It is excellent quality. The distillers are on the internet - Ebay - just look at water ditillers and the ones that range from $125 - $200 are perfect.
Make about one gallon in about 3 hours.