Filter funnels are low-cost disposable, sterile filter funnels for microbiological analysis and QC testing, food/beverages, raw material, sterility testing and finished product quality.

• 0.45 µm membranes are certified for water quality testing
• Upper separates easily from lower for easy access to the membrane

Cat. No. 147 features gray, water quality cellulose nitrate membrane with white grid. The membrane turns black when wet, making it easier to detect and count growing colonies.