Whatman 1441-050 Quantitative filter papers, Ashless, Grade 41, 50 mm, 100/PK (PN:1441-050)

GR 41 5CM 100/PK
Quantitative Filter Papers - Ashless Grade 41 circles, 50 mm, 100/pk The fastest ashless filter paper, recommended for analytical procedures involving coarse particles or gelatinous precipitates (e.g., iron or aluminum hydroxides).

Also, check out the Ahlstrom 0540-1850 Quantitative Filter Paper, Grade 54, 185 mm