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Fisherbrand™ Glass Fiber Circles

Faster flow, higher retention than cellulose filters

Manufacturer: fisherbrand™  09-804-21B

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Catalog No. 09-804-21B


Description & Specifications


Material Glass Fiber
Diameter (Metric) Outside 2.1cm
Autoclavable Yes
For Use With (Application) Biological fluids, serum, blood fractions, biochemical polymers, precipitated proteins, industrial waste analysis, prefilter for membranes
Flow Rate Fast
Grade G2
Particle Retention 1μm
Temperature (Metric) Max 500°C
Thickness (English) 0.025 in.
Thickness (Metric) 0.66mm
Diameter (English) Outside 0.82 in.
Temperature (English) Maximum 932°F

Used as prefilters and for gravimetric analyses. Suitable for many corrosive applications.

  • Low hygroscopicity
  • Chemically and biologically inert, with no organic binders
  • Offer higher retention efficiency of fine particles (<3μm in size)
  • Resist clogging for greater loading capacity than cellulose paper filters
  • Autoclavable and usable to 500°C (932°F)
  • Filters should be used flat: folding will break the glass fibers


Accessories for Catalog Number: 0980421B

Item Mfr. No. Item Description Price Per Unit Quantity  
Fisherbrand™ Filter Forceps
Easy, effortless handling of membranes and glass fiber filters Each for $10.80