QUOTE(zheilwane @ Jul 5 2017, 09:50 AM)
most membrane are 0.01 micron (Hollow Fibre Membrane) : Mesh Size = SAME for most brands
I would say more than 90% or may be 100% the membrane filters in Malaysia are actually OEM in CHINA and they are actually +- the same thing with different branding only.
Membrane filters generally have two types
1) Hollow Fibre membrane
2) Multipore membrane or some name it multibore or 7 capillary
Membrane has different types of material, PAN is mainly used in malaysia (cheapest) while some brands do have PVDF and PVC which are better
1) PAN
2) PVDF
3) PVC
4) and etc etc
With this, may be u can google and get detail info about the type and material of the membrane. Hence, u will get a more accurate and neutral answer

NOTE : FLOWRATE and Membrane durability against water pressure in the catalogs could be inaccurate. For example, some brands spec their membrane filter can withstand upto 8 bar of pressure but actually it is referring to the filter casing is able to withstand upto 8 bar while normal PAN - Hollow Fibre can only withsand 3bar + (Not specify in catalog)
PM me the price for the below items:
1. 3M AP902
2. 3M AP DWS1000
3. Culligan WSH-C125
4. 3M AP Easy Cyst Full Flow
5. 3M HCD-2
For item 4 and 5 are optional as I am still considering, but do quote me the price for 1,2, and 3 along with their catridges for maintenance.
From your opinion, according to the items listed above; would my water filteration system would be overdo?
From what I read online, item no.4 can filter 0.1 micron. Would it be suitable for drinking?
I got another question is that, my concealed piping is rusting (from what I can tell by the look of the external port). As I know, rusted piping would cause amount of iron and my current piping aged about 10 years (I heard the max is 20 years). Would it still be safe after using filteration products?