Grade A cut 4.25cm diameter

Competitive Equivalents:

Whatman: 1820-042
Pall: n/a
Millipore: APFA04200
Ahlstrom: 1110-042

Grade A - Fine porosity, fast flow rate, with a 1.6µm size particle retention.  Frequently used in the filtration of precipitated proteins and cells.  Ideally suited for use as a filter for radioimmuno assay of weak beta emitters by scintillation counting and gravimetric determination of airborne particulate.  Binderless borosilicate glass micro fiber.   
 

Competitive Equivalents:
Whatman: 1820-042
Pall: n/a
Millipore: APFA04200
Ahlstrom: 1110-042