Filtering Flask, 250 mL

These 250 mL Home Science Tools filtering flasks are made of high-quality borosilicate glass that can be heated directly in an open flame. Use a #8 stopper for this thick-wall glass filtering flask with side-tube.

What is a filter flask or filtering flask?

A filtering flask is used to filter liquids in chemistry lab work that requires vacuum filtration or distillation. The graduations (measuring lines) are approximate and not intended for accurate liquid measurement.

NOTE: Actual product may vary from the one pictured due to differences in suppliers, but quality is still assured.

• Home Science Tools filter flasks are made from high-quality GG17 borosilicate glass
• Low coefficient of thermal expansion means this glass is capable of withstanding typical laboratory temperature variations
• Heavy wall construction to withstand 1 atmosphere (760mm Hg) vacuum
• Side hose connection, use 5/16" x 10' long rubber tubing
• Height: 13.5 cm.
• Diameter: 8.5 cm at base
• Neck inside diameter approximately 36 mm
• Marked to fill 50-250 mL in 50 mL increments
• Markings are accurate to +/-10%
• Use 5/16" x 10' long rubber tubing