The RO unit is basically a filter that you connect to your homes water piping ( connectors are supplied when you buy one )..Explained in last post what it actually does..I have attached a photo so you can actually see one..
As for how much they cost...This varies from place to place..See link below for an example..This is only an example, as i live in the UK so what is available to me, probably wont be for you..This is a US online store
http://www.drsfostersmith.com/Product/Prod_Display.cfm?pcatid=12093&N=2004+113773+22737
Niko
As for how much they cost...This varies from place to place..See link below for an example..This is only an example, as i live in the UK so what is available to me, probably wont be for you..This is a US online store
http://www.drsfostersmith.com/Product/Prod_Display.cfm?pcatid=12093&N=2004+113773+22737
Niko