Lab Safety Supply Inc
Lab Safety Supply Inc 12K943 Glass Microfiber Filter Gauge 2.7um 4.7cm PK100
Pack of 100 binderless borosilicate glass microfiber filters, 4.7 cm diameter, 2.7 µm pore size, rated to 500 °C
- TypeGround Fault and Current Leakage Testers
- Binderless borosilicate glass microfiber resists shedding
- 7 µm pore size captures fine particles
- 7 cm diameter fits standard holders
- Withstands temperatures up to 500 °C
- Pack of 100 filters for high-volume use
Glass Microfiber Filter Grade D
This package contains 100 binderless borosilicate glass microfiber filter discs each measuring 4.7 cm in diameter. The media is rated for pore size 2.7 um and a thickness of .6 mm. It is suitable for filtration of liquids or air in laboratory and industrial settings.
Thermal stability to 500 degrees C
The borosilicate glass construction withstands continuous operating temperatures up to 500 degrees C without binder degradation. This allows the filters to be used in hot gas monitoring or heated liquid clarification where polymer membranes would fail. The binderless design eliminates extractables during prolonged thermal exposure.
Pore size 2.7 um defines retention
The 2.7 micrometre nominal pore rating determines which particulates are captured and the flow resistance you will observe. Choose this grade when your method specifies this exact retention level; a finer or coarser pore size will change both collection efficiency and differential pressure.
Highlights
- Binderless borosilicate glass microfiber resists shedding
- 7 µm pore size captures fine particles
- 7 cm diameter fits standard holders
- Withstands temperatures up to 500 °C
- Pack of 100 filters for high-volume use
Specifications
| Brand | LAB SAFETY SUPPLY |
|---|---|
| Type | Ground Fault and Current Leakage Testers |
Questions about this item
How much heat can the 2.7 µm glass microfiber filter withstand during continuous use?
The binderless borosilicate glass microfiber material is rated for temperatures up to 500 °C, so it remains stable during prolonged high-temperature filtration.
What equipment is needed to use these 4.7 cm diameter filters?
A filter holder or funnel assembly designed for 4.7 cm diameter discs is required to support the membrane during liquid or air filtration.
Will these Grade D filters fit in my existing 4.7 cm filter holders?
Yes, each disc measures 4.7 cm in diameter and 0.6 mm thick, matching standard holders for that size.
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