$197.70 | Tell a friend | Print Code: 031-830 Categories FILTER PAPER | Filter Papers; Whatman; Qualitative; Circles and sheets; Grade 4; Retains coarse particles; Gelatinous precipitates; Particle retention: >20-25µm; Surface: Smooth; Porosity: Coarse; Filtration speed: Herzberg, 37 seconds; 320mm dia. Stock Availability: Yes | Qty: Add to Wish List