Whatman 1001-325 Quantitative Filter Paper Circles, 11 Micron, 10.5 s/100mL/sq inch Flow Rate, Grade 1, 25mm Diameter (Pack of 100): Science Lab Quantitative Filter Paper: Amazon.com: Industrial & Scientific
1442-090 Whatman 1442-090 Quantitative, Ashless High-quality cotton linters Filter Paper 2.5 µm, 90 mm (100/Pack) New Laboratory Setup Savings - up to 40%, Magnetic Stirrer, Vortex Mixer, Sample Prep, Centrifuge
Amazon.com: Whatman 1450-090 Círculos de papel de filtro cuantitativo, 2,7 micras, grado 50, 3.543 in de diámetro (paquete de 100) : Industrial y Científico
Whatman standard qualitative filter Papers Grade 5 -
Amazon.com: Whatman 1450-090 Círculos de papel de filtro cuantitativo, 2,7 micras, grado 50, 3.543 in de diámetro (paquete de 100) : Industrial y Científico
90mm Whatman Filter Paper
Whatman 10300010, Grade 589/1 Filter for Coarse Precipitate Retention, 110 mm circle (100 pcs)