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Monoject 18ga blunt needle**
Large Maximum Absorbency
Disposable Scalpel
Handy key ring
Filter Circles, 55mm Dia, Binder Free Grade GF/A, 100/pk (1820-055) Monoject 18ga blunt needle**Whatman offers two types of glass microfiber filters manufactured from 100% borosilicate glass: binder free that is chemically inert and with binder. These filters combine fast flow rates with high loading capacity and the retention of very fine particles, extending into the sub micron range. Can be used at temperatures up to 500C and are ideal for use in applications involving air filtration and for gravimetric analysis of volatile materials where
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