25 mm Filter Funnels, Polysulfone

Economical, Autoclavable Funnels
for Vacuum Filtration

• 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.

Material of Construction

• Polysulfone

Effective Filtration Area

• 2.9 cm²

Dimensions

• Overall Length:
  • 50 mL: 15.8 cm (6.2 in.)
  • 200 mL: 20.1 cm (7.9 in.)
• Diameter: 7.1 cm (2.8 in.)

Filter Size

• Accepts 25 mm filter

Funnel Capacity

• 50 or 200 mL

Connections

• Tapered funnel stem inserts into standard size No. 2 rubber stopper

Maximum Operating Temperature

• Limited by membrane or 121 °C (250 °F)

Sterilization

• Provided non-sterile. Autoclavable if desired at 121 - 123 °C (250 - 253 °F) at 1.0 bar (100 kPa, 15 psi) for 15 - 20 min.

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Part Number	Description	Pkg	Price	Qty
25 mm Filter Funnels, Polysulfone
4204	25 mm, 50 mL capacity, polysulfone	1/pkg	136.44
4203	25 mm, 200 mL capacity, polysulfone	1/pkg	154.96
Accessories and Replacement Parts
79791	Support screen, type 316 stainless steel	1/pkg	38.99
87265	Support screen, polysulfone	1/pkg	7.87

Contact Customer Service at 800-521-1520 for possible lead-time and ship date.