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MetaPurex nano-porous aluminum oxide (AAO) ceramic 25 mm diameter discs with 60 nm pore size diameter.  Fits standard Lauer lock filter holder. Pore: l ocal hexagonal packing (honeycomb) order with 60 nm  pore size of maximum variation 10%. Membrane thickness is 50 microns.  Micro-crack free heat sealed edges requires no o-ring protection, leaving larger filtration surface.

MetaPurex 25mm diameter discs. Pack of 10

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