Filter Papers, Qualitative Standard Grade 4 (Whatman)

Grade 4: 20-25 ┬Ám with excellent retention of coarse particles and gelatinous precipitates. Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.

Description/Item No. Diameter Mfr. Item No. Qty. Your Cost/Qty Purchase
Filter Papers, Qualitative Standard Grade 4 (Whatman)
3255-35
5.5 cm 1004-055 pack/100
Buy 1 $11.91/PK
Buy 2 $10.38/PK
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Filter Papers, Qualitative Standard Grade 4 (Whatman)
3255-36
7 cm 1004-070 pack/100
Buy 1 $11.91/PK
Buy 2 $10.38/PK
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Filter Papers, Qualitative Standard Grade 4 (Whatman)
3255-37
9 cm 1004-090 pack/100
Buy 1 $14.60/PK
Buy 2 $12.73/PK
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Filter Papers, Qualitative Standard Grade 4 (Whatman)
3255-38
11 cm 1004-110 pack/100
Buy 1 $18.53/PK
Buy 2 $16.15/PK
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Filter Papers, Qualitative Standard Grade 4 (Whatman)
3255-39
12.5 cm 1004-125 pack/100
Buy 1 $23.78/PK
Buy 2 $20.73/PK
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Filter Papers, Qualitative Standard Grade 4 (Whatman)
3255-40
15 cm 1004-150 pack/100
Buy 1 $30.41/PK
Buy 2 $26.51/PK
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