These cellulose filters are used in qualitative analytical techniques to determine and identify materials. A standard grade filter paper for fine precipitates.

• Increased filter surface area increases total loading capacity and decreases overall filtration time
• Reduced contact between filter and funnel maintains flow rate
• Eliminated need to quadrant-fold filter circles to fit conical funnels saves time in repetitive or multiple analyses
• Prepleated filters have the same technical properties as the respective filter circles

Prepleated qualitative filters give improved flow rate and increased loading capacity compared to equivalent quadrant folded filters.