Aquasana for cheap and good.
Amway for expensive and good

At least these got certification

Yes I am using now.
After changing from cosway to 3m to aquasana.

Amway cannot afford

Go check their certs

taste very good. silky smooth

the 3m taste a bit weird, slightly metalic to me
coway is neutral taste


yes i do have a dolton ceramic as pre-filter

not true at all. just avoid those mlm stuff where you pay their multi layer salary instead of buying product. i avoid the kimchis because of the unnecessary subscription to replace filter and the uncertified catridges. and the worst offener would be those kagen, dr x.

3m, aqua, amway ya from usa, at least are certified.
i like amway as they got UV lamp to kill any remaining bacteria not killed by chlorine. unfortunately they are MLM and you pay through the roof for it.

aqua, amway are the two brands certified to filter antibiotic residue. not sure 3m have the cert or not.

thanks gingerrobot
https://cdn.aquasana.com/assets/AQ-4000_Performance_Data.pdf
do add a cheap ceramic filter first. this will prolong the lifespan of the filter.

some additional filteration compared to others:
nsf401 = filter out bpa and antibiotics

so far i know only 3m, aquasana and amway can do this.

agree.
but cannot afford it
now new system got bloody DRM. after expire cannot work anymore.

now oni u know kah.
but anyway, the difference between amway and aqua/3m is the UV lamp to kill bacteria.
but so far our malaysia water is chlorinated so no bacteria problem.