Whatman 1820-110 Filter Circles, 110mm Dia, Binder Free Grade GF/A, 100/pk (PN:1820-110)

Grade GF/A glass microfiber filters are designed for fast filtration of fine particles in liquid and air samples. They are widely used in environmental monitoring, water quality testing, protein filtration, and gravimetric particulate analysis where high flow and loading capacity are required.

GF/A filters provide nominal particle retention of approximately 1.6 µm, making them suitable for capturing fine suspended solids while maintaining rapid filtration speed.

Binder-free construction means the filter is made entirely of pure borosilicate glass fibers without added binders, resulting in low extractables, excellent chemical resistance, and minimal risk of sample contamination.

Typical specifications include:

Diameter: 110 mm
Material: glass microfiber
Particle retention: ~1.6 µm
Thickness: ~0.26 mm
Flow rate: fast, high loading capacity
Pack size: 100 filters

These characteristics support efficient, high-throughput laboratory filtration.

GF/A filters are commonly used for air pollution monitoring, wastewater testing, algae and bacteria collection, food and beverage analysis, and general laboratory filtration where rapid flow and high particle capacity are important.