Whatman 10300010, Grade 589/1 Filter for Coarse Precipitate Retention, 110 mm circle (100 pcs)
CBR Coarse Filter Paper, Pkg. 100 | California Bearing Ratio Equipment and Soil Testing Equipment
Coarse Filter Paper at Thomas Scientific
Whatman 10300045, Grade 589/1 1/2 Filter for Coarse Precipitate Retention, folded, 150 mm (100 pcs)
Labasics Qualitative Filter Paper Circles, 55 mm Diameter Cellulose Filter Paper with 15-20 Micron Particle Retention Medium Filtration Speed, Pack of 100: Amazon.com: Industrial & Scientific