"STEM kits"

Useful for adding powder chemical to reaction vessels.

Add liquids safely to flask setups while keeping apparatus assembled.

These large utility funnels will withstand temperatures up to 250°F (121°C).

Büchner funnels with straight sides and fixed perforated plates made of glazed porcelain.

Stout-walled Thistle Tube Funnels for the delivery of liquid to an existing system or apparatus.