circles
cotton filters (high-quality cotton linters)
pack of 100
Whatman 1450-090
Whatman Article No. 28418080 (US reference)
2685 sec/100 mL speed (Herzberg)
6 psi wet burst
90 mm
0.12115 μm
≤0.015%
2.7 μm (Particle retention)
97 g/m2