Bought 4 stage RODI about 6 years ago after battling algae in my reef tank for many years because I was just using tap water to mix my salt mix. This was a game changer when I started using RODI to mix my salt. Water parameters are better and algae is within check.
As always, top notch product
Worked for over 2 years
SpectraPure® Standard MaxCap® RO/DI Replacement Filter Kit