Ace Glass, 9473-20, Flask Tapered Wall, Four Neck, with Single #7 Ace-Thread, 50ml, 14/20
A vertical, compact, screw feed funnel for the addition of powders and solids (up to 25 mesh) into reactions without seizing or binding. Features a flexible PTFE screw thread wrapped on a precision Rulon 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. #7 Ace-Thread offers easy disassembly for cleaning. Top outer and bottom inner joints are ST 14/20. Approximate capacity, 15mL.