"STEM kits"

Each set includes three funnels of different sizes. Small funnels are made of polypropylene; large funnels are made of polyethylene. Sizes in small funnel set: 60 mm top dia. x 20 mm stem, 80 mm top dia. x 22 mm stem, 110 mm top dia. x 36 mm stem. Sizes in large set: 127 mm top dia. x 45 mm stem, 160 mm top dia. x 50 mm stem, 200 mm top dia. x 60 mm stem.

A rugged borosilicate funnel with stem length approximately equal to funnel diameter. These funnels have a 58° angle. Top dia.: 65mm. Filter size: 11cm. Package of 12.

This unbreakable plastic thistle tube is ideal for the high school laboratory. It has a two piece construction with the stem tightly fitting into the funnel. Stem O.D.: 6mm. Length: 290mm. Package of 12.

For filling burets. Diameter: 35 mm; total length: 60 mm; outside diameter of stem: 6 mm.

Standard for any laboratory.

Medium weight with wide flared top.

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

Heavy glass with raised ribs inside.

Useful for adding powder chemical to reaction vessels.

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