• High-impact polystyrene collars are durable and reliable
• Pre-assembled, sterile, individually bagged to ensure sample integrity
• The adapter is suitable for No. 8 filter plugs and can be matched with 0.5 in. diameter filter holes in a vacuum manifold or filter bottle.
• Nitrocellulose membrane with a diameter of 47 mm is used. Certified for water analysis work
• The 250 mL size can be used when testing foamy beverages
• Cat. No. 147-0045, characterized by a gray film that turns black when wet, making it easier to Detect and count growing colonies

Included: Six funnel spinners per box Connector