Any substance, as cloth, paper, porous porcelain, or a layer of charcoal or sand, through which liquid or gas is passed to remove suspended impurities or to recover solids.

General Purpose Filter

Any substance, as cloth, paper, porous porcelain, or a layer of charcoal or sand, through which liquid…

A filter, sieve, or the like for straining liquids.

Pulp Separation Strainer

A filter, sieve, or the like for straining liquids.