Whatman 7141-004 Cellulose Nitrate Membrane Filter with Grid Non-Sterile, 0.45 Micron 47mm Diameter, (Pack of 100)
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<b>[Product Information]</b><br>
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<li>0.45µm cellulose nitrate membrane filter with grid, non-sterile, 47mm</li>
<li>Gridded surface (3.1mm intervals) make filters ideal for colony counting</li>
<li>Membranes are among the strongest available of their type</li>
<li>Performance improvements include very narrow pore size distribution and low levels of extractables</li>
<li>Has a noticeably improved flexibility; is made to tolerate abuse</li>
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