Thermo Scientific Nalgene 4250 polypropylene Analytical funnel

No air lock with outer ribs Get faster filtration with 58° angled internal ribs. Accepts standard filter papers. Long stems and external ribbing eliminates air lock.

The funnels are shatterproof alternative to glass and chemically resistant to a wide variety of lab chemicals and reagents. The body of funnel is at a 60° angle with internal ribs sloped at 58° for rapid filtration.