Cost per gallon
RO Membrane Replacement Cost: $62.99 a Year, Carbon Stages $183.98
Aquasana's SmartFlow RO membrane is $62.99 and lasts 12 months; its carbon pair costs $183.98 a year. APEC and iSpring sets compared, plus the TDS check.
Aquasana's SmartFlow RO membrane is $62.99 and lasts 12 months; its carbon pair costs $183.98 a year. APEC and iSpring sets compared, plus the TDS check.