25 mm polysulfone filter funnels are economical, autoclavable funnels suitable for vacuum filtration applications.

Transparent funnels with graduations permit easy visual measurement.
Less expensive than stainless steel and more durable than glass.
Tapered stem fits standard size #2 stoppers.
Available in 50 and 200 mL capacities.
Changing filters is easy. Twist-lock coupling minimizes filter tearing.
Ideal for liquid clarification, vacuum filtration, and scintillation counting studies.