Hi, thanks for the question.

Disruptor does not work the same way. Yes, stage 1 is 1 micron for sediment removal, stage 3 is carbon block with 0.5 micron pores for best chlorine removal, but the core of the system is stage 2, Disruptor cartridge.

Disruptor cartridge has nominal of 1.2 micron, but the way it works is by creating a positive low electrical charge through whole depth of it, meaning it can trap 99.99% of negatively charged contaminants regardless of how small they are. I hope I explained it clearly, but there are couple of links which explain it even in more details, including a source from NASA.

https://spinoff.nasa.gov/Spinoff2009/er_2.html

https://www.water-technology.net/contractor...lstrom-tampere/

https://www.ahlstrom-munksjo.com/link/d8660...5fd3881398.aspx
In practical terms it means that Disruptor will be able to remove a lot more contaminants than 3M DWS2500 you have mentioned. That 3M is directly comparable to Aquaphor Crystal Eco, but Disruptor is more advanced. In the PDF above, you can check different technology comparison, where 3M is UF membrane.

Hope it helps.

Stage 1 and 2 washable, stage 3 must change every year.

Stage 3 cost is 80RM, all 3 stages are 300RM. So in short, realistically it will look like that. After 1 year, wash stage 1-2 and change stage 3 (80RM). After 2 years, change all 3 (300RM).

If anything happens (say you have too much iron) and your stage 1 gets blocked in 1st year, you need to buy them separately for some reason:

1st stage is 50RM
2nd stage is 200RM
3rd stage is 80RM
And thanks for asking, I will make them all available on Shopee soon.

As for other examples, yes, will post them here soon, let me just find few worth posting.

New PoE+PoU packages!

Depends, we did install in condo as well. Would your management allow you to install in the meter room? If not, are there pipes easily accessible inside the condo? You mentioned you have 3M mini PoE, where is it installed? It can be replaced with 10" version of our PoE or 20" if it fits. But what is wrong with 3M mini PoE? Requires often cartridge changes?