Facilitates the delivery of free-flowing, granular solids into reactions. Pressure equalizing arm is equipped with a vented stopper for air-free operations and also permits access into the delivery stem for easy clean-out.

One-piece, easily removed, grooved PTFE auger delivers powders at a uniform rate. Funnel has a lower inner joint and top outer, both being the size listed.

The 250 and 500 ml capacities have the larger, deep cut auger (Size B) for use with coarse material.