You will want to confirm this information with your ECOwater salesman
in writing, but I believe the effectiveness of the carbon is warrantied.
The solid carbon block Multi-Pure is NSF certified for health effects.
It is a no wait, in and out filter that has no waste water and the only maintenance
is a yearly cartridge change. It does not remove salts/minerals.
I offer my clients Multi-Pure filters at a discount.
For optimal performance the RO requires a constant pressure and temperature.
It also requires manual flushing of the membrane and frequent pre & post filter changes.
The RO membrane rejects water to the drain and also needs periodic replacement.
The RO is also slow, it can only process so much water in a given time frame.
I don't offer an RO to my clients.