[nisesen]

I have an APEC systems RO-90 in my parents home and an APEC RO-hi system in my house. They work fantastic and are easy to install. Brings me peace of mind knowing my drinking water is super clean

[evanlivingston]

APEC doesn't appear to even be certified by NSF which is rather disconcerting.

https://info.nsf.org/Certified/dwtu/listings.asp

[smilekzs]

I went APEC too; can recommend, but I expect most of the look-alike systems to work equally well (filters being interchangeable).