Glass Fiber Filter Discs, 1.2um Retention, 21mm, Binder-Free, Nonsterile, 100/Pk
GVS SKU: FP021DMEFCGLFC01

Featuring a binder-free borosilicate glass fiber depth medium, these 21mm filter discs deliver a 1.2um nominal particle retention with a 0.26mm (260um) thickness. The hydrophilic depth structure provides high particulate loading capacity and rapid flow, making it well suited for clarification of heavily loaded samples and for protecting downstream membranes. Because the medium contains no binder, it minimizes extractables and is appropriate for gravimetric and analytical determinations. Each pack contains 100 discs.

Key Glass Fiber Media Characteristics

• Binder-free construction: 100% borosilicate glass fiber with no binder, reducing media migration concerns and avoiding binder extractables for gravimetric and analytical work.
• Naturally hydrophilic: wets readily with aqueous samples for consistent, fast filtration without pretreatment.
• Nominal particle retention: 1.2um nominal retention captures fine particulates while maintaining a depth-loading structure rather than a screening surface.
• High loading and flow: the large internal surface area of the depth medium provides outstanding impurity retention capacity combined with low filter resistance.
• Chemically robust: biologically inert, autoclavable, and highly resistant to oxidizing agents and weak acids.

Key Construction Characteristics

• Format: 21mm diameter circular filter disc.
• Media thickness: 0.26mm (260um).
• Sterility: supplied nonsterile.
• Pack size: 100 discs per pack.

This binder-free glass fiber medium maintains reliable, repeatable filtration across high-particulate samples while preserving sample integrity. Its depth structure withstands heavy loading and supports rapid throughput, extending the working life of finer downstream filters.

Diameter

21mm

Grade

DMEFC

Material

Glass Fiber (GF)

Maximum Operating Temperature (°C)

500

Membrane Thickness (µm)

260

Nominal Thickness (µm)

260

Pack Count

100

Particle Retention

1.2um

Pore Size (µm)

1.2

Qualitative/ Quantitative

Quantitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

No

Wettability

Hydrophilic

Whatman Equivalent

GF/C

• Sample Prefiltration Removes coarse and fine particulates from heavily loaded samples to protect and extend the life of downstream membrane filters.
• Total Suspended Solids Analysis The 1.2um retention depth medium supports collection of suspended solids in potable water and wastewater testing.
• Environmental Sample Prep Suited to water and wastewater clarification where high particulate loading and fast flow are required.
• Gravimetric Determinations Binder-free borosilicate construction avoids binder extractables for accurate weighing and analytical measurements.
• General Liquid Clarification Provides low-cost clarification of difficult or particle-rich solutions prior to further processing.
• Solvent Filtration Chemically resistant glass fiber medium clarifies solvents and aggressive solutions ahead of analysis.