I think that's improved, at least according to product literature (I haven't tested it myself), however:
The latest generation of small under-sink reverse osmosis filters claim to waste only 1 gallon for every 2 gallons of usable water. Still bad but much better than before.
The latest generation of small under-sink reverse osmosis filters claim to waste only 1 gallon for every 2 gallons of usable water. Still bad but much better than before.