Where to buy? RO unit

[asmackay]

I'm moving to a location with well water and measure 250 ppm kh.  I use presurrized CO2 and want to lower the KH values.

Where can I buy a unit locally and what is a good brand?

In the short term can I use those culligan 10g water containers for water changes?

[jon1985]

any of the sponsors on this forum will sell them.