45 mm Pour Ring, Etfe, 1 Case

Red ETFE Screw Cap for WHEATON? Lab 45TM Media Bottle Pour Ring 45mm (Case of 10)      
 
For high temperature applications, use the PBT (polybutylene terephthalate) screw caps and the ETFE (ethylene tetrafluoroethylene) pour lips which can withstand temperatures up to 200?C up to 2 hours
Autoclavable