StonyLab Quantitative Filter Paper Circles, 125mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100 (125mm Diameter)

came quickly and my fault i got the wrong size

I am not filtering anything that would require the same performance/features as say a medical counterpoint, but I can attest to the fact that this filters indeed work. I've run them singularly and in pairs through a Buchner funnel with a vacuum pump (really just a relabeled aquarium pump lol) with great success. I achieved my desired results which was the removal of fine particulates from Everclear. Be forewarned, even though StonyLab produces these filters and supposedly their Buchner funnels (mine has a stamp indicating the mm of the funnel directly above a sticker that says 'StonyLab 100mm' that is laughably crooked) these 94mm are just slightly too large to rest flat in their 100mm Buchner funnel. TL;DR - They do the job at the perfect price point.

I use these filters in conjunction with a vacuum beaker and vacuum pump, which speeds the process!

It’s nice to get something that works like it’s supposed to. Thank you

Items shipped properly and quickly. Quality glassware, will buy again from supplier.

The 94mm papers I ordered were the same as the 100mm filters I ordered so I downsized and these are obviously too small. I guess Stonylabs really lives up to their name because they can't get me the proper filters dor their product. I am to the point where I'm going to return my filtration setup as well because I really don't have time for these games. They also seem to like to reject my reviews so if that happens again, I'm going to file a complaint with the FTC as I should be able to trust in what I am purchasing. If I can't do that, and get censored for calling attention to it, then I'll just find a regulatory commission to file a report with.

Very satisfied with my purchase. Works very well. Two thumbs up.

Reliable quality. Fast shipping.

Nickel !

muy buena calidad

Fits the bowl, thanks.

Wie beschrieben. Liefern lassen und benutzen. Macht das, was es soll.

Everything is perfect: very quick delivery and the filters ate exactly what I want to buy.