5.5 cm Filter Paper #415 (Fast 25um)/pack of 100

5.5 cm (55 mm) Grade 415 Filter Paper, Qualitative, Crepe Good for coarse precipitates such as aluminum hydroxide, cobalt carbonate, mercury iodide, magnesium hydroxide, and more. Porosity Coarse Particle Retention 25 µm Flow Rate Fast Fits 94ml Hirsch Funnel and 80mm Powder Funnel