If you work in a lab or do any kind of chemical filtration, these PTFE membrane filters are absolutely essential. The 0.45µm pore size is perfect for all sorts of applications, and being hydrophobic means they're ideal for gas and air filtration without getting clogged with water. The 47mm diameter is a super common size that fits most standard filter holders and equipment. What's really impressive is the chemical compatibility - these things can handle pretty much anything with a pH range from 1 to 14, so acids, solvents, and aggressive chemicals are no problem. The white plain surface makes it easy to see what you're filtering, and the flow rates are solid - you're looking at ≥30mL/min/cm² at just 1 bar pressure. Each pack comes with 50 filters, which is great because you'll go through them faster than you think. I've used these for everything from sterilizing solutions to venting applications where moisture would ruin other types of filters. The quality is consistent, and they arrive packaged nicely so they don't get damaged in shipping. Much better than messing with mixed filter types or worrying about chemical compatibility issues. If you need reliable filtration that won't break down with tough chemicals, these PTFE membranes are definitely the way to go.
Free 30-day returns 
Free 30-day returns
