Membrane Solutions 10 Pack Syringe Filter Sterile PES Hydrophilic Filtration 0.22um Pore Size, 33mm Membrane Diameter Sterile PES Membrane Individually Packed

Used it for my testosterone which had chunks of the rubber stopper inside it. It filtered everything out and I didnt need to replace my vial

High quality filters that twist and lock easily. Very simple to use, just push the liquid through them. You can even see what it filters out because the chamber where it keeps everything it takes out is transparent-ish. Would recommend.

So yes I bought this with intentions of IV use of my oxycontin, before I used these filters the shot had fillers in it and made it look the color of the pill, now it filters out and it's clear and pure compound. I've noticed some are hard to push through, idk if it's an error on my end or if it's the filter. But majority of the time no issue.

Fast shipping great buy

Have used these multiple times and they've always worked really well. However, the last batch I had were clearly defective. They were absolutely impossible to push the the oil i was filtering though the filer. As I said, I've used these and never had an issue. I went through 30 filters trying to find one that I could actually use. My whole filtering process should have taken no more than 5 or 6 from start to finish. Not sure what the problem was but even with using a caulking gun to add some extra leverage, I still could barely get a drop at a time through these. Very frustrating!

These are great for laboratory use. They appear to filter out the smallest particles (the color of the substrate is clear upon filtration), but I would recommend double filtration just in case. I have no scientific data supporting this but on the off chance you get a bad batch of filters, well it’s better to be safe than sorry. I’ve used these numerous times and so far they have been a success. These are a must have if using in a laboratory to filter out unwanted BINDERS from sticky products. Better to err on the side of caution. It can get pricey yes, but it beats the alternative. IFYKYK. Stay safe out there, practice good hygiene!

Super easy attachment between the needle and the syringe.Functionality is spot on.All individually wrapped in a large bag.

My students use these filters for the lab for antibiotics and other heat sensitive solutions.They are easy to use. Have purchased these multiple times.Highly commend.