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Thermo Scientific Nalgene Funnel 55 mm O.D. with 7 mm O.D. x 61 mm L Stem 4250-0055$135.60
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.