Provides dual entry into a variety of flasks

·         Compatible with 179700 glass BEVEL-SEAL™ inlet adapters or 179800 PTFE BEVEL-SEAL™ inlet adapters for thermometer use at either top opening

·         Useful for reflux with addition-type reactions

·         Joints are the same size

·         Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements