MetaPurex 47 mm diameter discs. Pack of 3
MetaPurex nano-porous aluminum oxide (AAO) ceramic 47 mm diameter discs. Fits large Lauer lock filter holders. Pore: local hexagonal packing (honeycomb) order with 60 nm pore size of 10% maximum variation. Membrane thickness is 50 microns. Micro-crack free heat sealed edges requires no o-ring protection, leaving larger filtration surface.