90mm diameter, Type GC50, Glass Fiber Filters, Non-Sterile, 100/pack
Approximate Pore size:  1.0 to 1.2µm Nominal ( (Not designed to be compared with membrane filter applications.)
Approximate Thickness 460µm

•  High flow rate (about 250ml/minute/cm2)
•  High holding capacity for solids (dirt)
•  High wet strength
•  Autoclavable (use up to 500°C)
•  Extremely high aerosol retention >99.5%

For analysis of dissolved and/or suspended solids in wastewater.  Used in air monitoring; gravimetric analysis of air poluants.

These filters can also be used as a prefilter with Bottletop Filter Units, placing this glass fiber filter on top of the filter unit's membrane. (Note, these Glass Fiber Filters are packaged non-sterile.)

For sterile applications, prefilters will need to sterilized by autoclaving prior to use. Prefilters should be sterilized in an autoclavable Self-Seal Pouch with sterilization indicator, such as our Catalog #P-SS1.)