Premium Filter Paper, 15cm, Pack of 100 -
StonyLab Quantitative Filter Paper Circles, 94mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100 Whatman 1005-070 Quantitative Filter Paper Circles, 2.5 Micron, 94 s/100mL/sq inch Flow Rate, Grade 5, 70mm Diameter (Pack of 100)