Few people contacted me in private to ask how they can purchase one of these, so I figured I'll leave the details here where everybody could find.I would suggest to take a look at A&C skimmers.
I have one and so far it's the best I've used, with a more reasonable price than you would find anywhere else.
It's a handmade skimmer made in Ukranian by someone that being doing this for 20 years.
The new models he developed are made partially with 3D printed parts with novel designs, with models that can only be produced using additive production processes.
Many reefers both in Ukraine and Russia (before the war) have switched to using it and sold their pricy Bubble kings, because they found it to perform better.
You may want to read Jake Adams review on these skimmers, they are more powerful than you think, easy to maintain, and cheap even compared to the most basic and generic skimmers you'll find around.
Basically, you can either place an order within the official site or contact Alexander directly through WhatsApp, using the phone number listed at the bottom.
He mostly speaks/writes in Russian/Ukranian, but he can also communicate in English using Google Translate.
He's an expert, and will help you tailor the exact required skimmer according to the description of the target system.
And yes, he does ship worldwide, even right now during the war - the only [very obvious] exception is he would not ship to Russia or Belarus. Also from my experience, shipping fees are a lot lower than from other countries.
Here is the official site:
https://reefma.com.ua
These are insanely good and well built skimmers, I highly recommend them.