Glass Fiber Filter Discs, 0.5um, 142mm, Nonsterile, 25/Pk
GVS SKU: 1215553

Featuring a hydrophilic borosilicate glass fiber depth medium bonded with acrylic resin, these 142mm filter discs deliver a 0.5um nominal particle retention for high-volume aqueous filtration and prefiltration. The acrylic binder reduces media migration and provides the mechanical strength needed for demanding, long-duration filtrations under pressure, while the open depth structure handles heavy particulate loads at high flow. Each pack contains 25 nonsterile discs.

Key Glass Fiber Media Characteristics

• Naturally hydrophilic: the borosilicate glass fiber matrix wets spontaneously with water and aqueous solutions for fast, even flow.
• Nominal 0.5um retention: as a depth medium, it captures fine particles throughout its thickness rather than at a single screen surface, suiting it to heavily loaded samples.
• High particulate loading: the large internal surface area provides outstanding dirt-holding capacity combined with low filtration resistance.
• Acrylic resin binder: reduces fiber media migration and adds the strength required for high-volume aqueous filtrations of long duration.
• Chemically robust: biologically inert, autoclavable, and highly resistant to oxidizing agents and weak acids.

Key Construction Characteristics

• Format: plain 142mm disc for use in standard filter holders and funnels.
• Media: 100 percent borosilicate glass fiber with acrylic binder.
• Sterility: supplied nonsterile.
• Pack: 25 discs per pack.

As a depth prefilter, the medium extends the service life of downstream membrane filters by trapping large particles before they reach the final membrane. Used alone, it provides low-cost clarification of aqueous samples while maintaining consistent flow. The robust, autoclavable construction supports reliable, repeatable performance and helps protect sample integrity across high-volume workflows.

Color

White

Diameter

142mm

Grade

Plain

Material

Glass Fiber (GF) with Binder

Mesh Format

Disc

Pack Count

25

Pore Size (µm)

0.5

Prefilter (Yes/No)

Yes

Sterility

Nonsterile

Wettability

Hydrophilic

• Membrane Prefiltration Protects and extends the life of downstream final membrane filters by capturing large particles upstream.
• High-Volume Aqueous Clarification Provides low-cost clarification of heavily loaded aqueous samples at high flow rates.
• Environmental Sample Prep Suited to water and air pollution monitoring where samples carry high particulate loads.
• Suspended Solids Analysis Handles suspended solids in water and industrial waste samples within the depth medium.
• Cell and Culture Harvesting Filters algae, bacteria, and other cell cultures from aqueous suspensions.
• Protein Filtration Clarifies protein-containing solutions while accommodating high particulate loading.