Flask, filter

Description

A Buchner flask, also known as a vacuum flask, filter flask, suction flask, side-arm flask
or Kitasato flask, is a thick-walled Erlenmeyer flask with a short glass tube and hose
barb protruding about an inch from its neck. The short tube and hose barb effectively acts as an
adapter over which the end of a thick-walled flexible hose (tubing) can be fitted to form a
connection to the flask. The other end of the hose can be connected to source of vacuum such as
an aspirator, vacuum pump, or house vacuum.