TCP Global 50 Pack of Paint Strainers with Ultra-Fine 125 Micron Filter Tips - Premium Pure Blue Ultra-Flow Blue Nylon Mesh - Cone Paint Filter Screen - Finely Strain Auto, Car, House Paint

I had some Waterlox varnish in Stop Loss bags for two years. Before using the Waterlox, I used these filters and I am glad I did. The filter trapped material that would have ruined my project. Considering the price of Waterlox, my purchase of Stop Loss bags and these filters was a good investment.

Great filters at a reasonable cost. I will be ordering these again

Nothing can spoil your day more than a punctured FEP on your 3D printer. The usual culprit is a small piece of cured resin that has made its way into your resin. Filtering you resin through these high quality Paint Filters as you return your extra resin back into the bottle is the best way of preventing such bad outcomes. The extra fine mesh on these will ensure no small bits of cured resin get back into you bottle. Some other cheaper filters simply don't have a mesh this fine. Quality matters when 3D Printing. I consider these as part of the "101" tool set for 3D printing.

Nice smooth finish!

Where have these been my whole life.