Replace glass lab funnels with Thermo Scientific™ Nalgene™ Utility Funnels, which are an excellent shatter-proof alternative.  5207H70 and 5207H78 are made from shatter-proof, autoclavable polypropylene 5207H86 has a large throat opening for faster transfer of materials…

This strong, non-scratch and inert FDA grade, USP Class VI Teflon® PTFE blade fits all standard button-tip stirring shafts. "Long-groove" keyhole provides easy insertion into flask neck Rotates into proper position for stirring action