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Whatman 1440-240 Quantitative, Ashless High-quality cotton linters Filter Paper 8 µm, 240 mm (100/Pack)1440-240$280.99Order will ship within 1-3 business days -
Whatman 1441-240 Quantitative, Ashless High-quality cotton linters Filter Paper 20-25 µm, 240 mm (100/Pack)1441-240$280.99Order will ship within 1-3 business days -
Whatman 1442-240 Quantitative, Ashless High-quality cotton linters Filter Paper 2.5 µm, 240 mm (100/Pack)1442-240$282.32Order will ship within 1-3 business days -
Whatman 1444-240 Quantitative, Ashless High-quality cotton linters Filter Paper 3 µm, 240 mm (100/Pack)1444-240$280.99Order will ship within 1-3 business days