The Whatman™ Glass Fiber Filter Paper P/N 1820-866 by Cytiva is a high-performance laboratory filtration medium designed for fast throughput and high loading capacity. Manufactured from 100% borosilicate glass microfiber, GF/A grade filter sheets provide excellent fine particle retention with a nominal 1.6 µm pore size, making them ideal for a wide range of liquid and air filtration tasks. Each pack contains 100 precision-cut sheets (203 × 254 mm) that are fully binder-free and suitable for demanding analytical, environmental monitoring, and research applications.
Item Attributes
| Material | Borosilicate glass microfiber |
| Dimensions | 03 mm × 254 mm (8″ × 10″) |
| Part Number | 1820-866 |
| Thickness | ~260 µm |
| Function | Filtration of liquids and air to remove fine particulates |
| Brand | WHATMAN (a registered trademark of Cytiva) |
| Grade | GF/A (fast, high loading) |
| Pore Size | ~1.6 µm (nominal) |
