Side operated screw feeds funnel for the addition of powders and solids (up to 25 mesh) to reactions without problems of seizing or binding

PTFE-ceramic shaft and contained within a precision bore housing. This offers a unique flexibility in that the thread can move aside temporarily; as one spacing increases, the adjacent spacing decreases, thereby maintaining an average feed rate. Completely inert materials allow flushing with solvents without fear of contamination.

Standard taper 14/20 outer joint atop bottom inner joint has been eliminated. Bottom standard taper joint and top standard taper outer joints are 24/40. Features a flexible PTFE screw thread wrapped on a precision. Fabricated from borosilicate glass.