Create a Cheaper Water Filter: 25nm Cloth

[Steven Ellet]

I am looking for 25 nm "cloth" (I'm using that term loosely) my goal is to create a cheaper water filter similar to "LifeSaver bottle" (https://en.wikipedia.org/wiki/LifeSaver_bottle) which is $139

 

[f95toli]

That is not a very well defined question.
25nm of what? A metal?
What kind of substrate should it be attached to?
What size do you need?

 

[Baluncore]

It would be easier to buy a replacement cartridge and build the rest of your system. Search; 'reverse osmosis filter'
https://www.aliexpress.com/item/Hig...ilter-Cartridge-TFC-2012-75/32610634601.html?