Disposable Laboratory Filter Funnels | Polystyrene and Polypropylene These disposable laboratory filter funnels are designed for single-use or short-term gravity filtration applications using standard circular filter paper. Available in both polystyrene (PS) and polypropylene (PP) construction, each funnel features a ribbed interior that prevents filter paper adhesion and promotes even liquid distribution across the filter surface. The 55mm size accepts 11cm filter paper while the 65mm size accepts 12.5cm filter paper, covering the two most common filter paper diameters used in analytical chemistry and quality control laboratories. Choose Polystyrene or Polypropylene Based on Your Application Polystyrene (PS) funnels offer crystal-clear transparency for visual monitoring of filtration progress and are the economical choice for aqueous solutions, dilute acids, and routine filtration tasks. Polypropylene (PP) funnels provide broader chemical resistance including compatibility with organic solvents, concentrated acids, and bases, plus the ability to autoclave at 121°C. Both materials are lightweight, stackable, and designed for high-throughput laboratory workflows where washing reusable funnels is impractical. Specifications SKU Size Material Filter Paper Size Pack Qty 8301 55mm Polystyrene 11cm Box/100 or Case/600 8302 65mm Polystyrene 12.5cm Box/100 or Case/600 8303 55mm Polypropylene 11cm Box/100 or Case/600 8304 65mm Polypropylene 12.5cm Box/100 or Case/600 High-Volume Pack Sizes for Busy Laboratories Each disposable filter funnel is available in a Box of 100 for moderate usage or a Case of 600 for high-throughput laboratories processing large sample volumes daily. The bulk case packaging reduces per-unit cost and ensures uninterrupted supply for environmental testing facilities, water quality laboratories, clinical labs, and teaching institutions running multiple simultaneous filtration setups. Laboratory Applications Disposable filter funnels eliminate cross-contamination risk between samples and save time compared to cleaning reusable glassware. Common applications include gravity filtration of precipitates, clarification of solutions before spectrophotometric analysis, removal of particulates from water samples, and routine sample preparation in food safety and pharmaceutical QC testing. The ribbed interior design ensures complete contact between the filter paper and funnel walls, preventing channeling and ensuring consistent filtration results. Why Buy from LabSupplies.com LabSupplies.com is an authorized Globe Scientific dealer offering disposable filter funnels with fast USA shipping. We serve research institutions and university purchasing departments. Select your preferred material, size, and quantity from the dropdown above.
