Fisher Scientific Whatman Filter Paper 5.5 cm Diameter, Circle, Cellulose Fiber, Grade 1, Qualitative, Particle Retention: 11 µm, Porosity: Medium, Filtration Speed: Herzberg, 150 Sec, Smooth Surface - 09805B foam pad The instrument is sterile with 31620- Mechanical Timer To avoid over treatment Pakaging:100 Per Box
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Ships within 48 hours · Estimated delivery Sep 24 - Sep 29