Filter Paper, 0.45 micron, 2.5 cm (100/Box) (Ultra Filtration) (For use in Pressure Filter Syringe Units) - Electro-Glo Distribution
Cellulose Nitrate Filter Paper 0.45 micron dia 47mm pack of 100 suitable for millipore membrane filter set AC-607M4547 AC-2270m | Chemistry Bio Chemistry | Abronexport.com
Filter Sheets - 20 cm x 20 cm (0.45 Micron) | MoreWine