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Whatman quantitative filter paper, ashless, Grade 42 circles, diam. 42.5 mm, pack of 100 Whatman paper
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Whatman Grade No. 42 Quantitative Filter Paper, Ashless, Whatman 1442-070, Pack of 100 | $6.80 Off w/ Free Shipping
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1541-042 Whatman 1541-042 Quantitative, Hardened Ashless High-quality cotton linters Filter Paper 20-25 µm, 42.5 mm (100/Pack) New Laboratory Setup Savings - up to 40%, Magnetic Stirrer, Vortex Mixer, Sample Prep, Centrifuge
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GE Healthcare 1442-090 Grade 42 Ash Less Filter Paper for Instrumental Analysis, Circle, 90 mm Diameter (Pack of 100): Amazon.com: Industrial & Scientific
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Whatman Grade 42 Ashless Quantitative Filter Paper, For Internal Research Use Only, Capacity: 1870 S (herzberg)
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Filter Paper Whatman 42 | Ashless Filter Paper | Lab Filter Paper | Beaker - Filter No. 42 - Aliexpress
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Whatman 1442-042 Quantitative Filter Paper Circles, 2.5 Micron, Grade 42, 42.5mm Diameter (Pack of 100): Science Lab Quantitative Filter Paper: Amazon.com: Industrial & Scientific
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