- MCE Gridded Membrane Filter, Mixed Cellulose Esters Membrane Filter, Sterile Individual Pack Membrane Disc Filter, Diameter: 47 mm, Pore Size: 0.45 um, 100/Pk

Perfect for bacterial testing of water samples. I have used these in class for several years, and they are of excellent quality.

Great pricing. Shipped quickly. We'll be buying from them again.

These are great! I ordered them for a project one of our research students is doing. They're easy to use and packaging is good.

These filters are the perfect size and the grids make it easy for my students to count bacteria

Love it same product I buy except that it is easier to get. Thank you for having great vendors

Each sterile filter is individually wrapped. The filters seem to adequately capture microbes and we haven't had any problems with the filter not properly absorbing the growth media. The gridlines are easily seen so colony counting is not a problem.

Great price for 0.45 microns sterile filters. They are individually protected for easy use.

Paper. Not breathable. Zero filtration. I could make circles on paper, cut them out and sell them if I had no conscience. Shame on you!