MicroFunnel™ Filter Funnels

Increase Laboratory Efficiency with 
Ready-To-Use Disposable Filter Funnels

• Certified. Each lot is certified for microbiological analysis to provide added assurance of reliable results.
• Easy to use. Unique squeeze separation of cylinder from base allows easy access to membrane.
• Individually bagged, disposable filter units prevent cross-contamination of samples.
• Available in 300 mL capacity to process larger samples.
• Allows easy and accurate sample measurement. The 100 mL funnels are marked in 10 mL increments. The 100 mL increment is marked completely around the funnel for higher visibility. The 300 mL funnel is marked in 50 mL increments.
• Saves time. Disposable design eliminates the cleaning and sterilization required with reusable funnels.
• Ready to use. Pre-assembled and gamma-irradiated to eliminate the potential for toxic extractables associated with EtO sterilization.
• Variety of options. Choose from GN-6 Metricel® membrane in 0.45 μm pore size, Supor® membrane with 0.2 or 0.45 μm pore size, or Metricel Black membrane with 0.45 or 0.8 μm pore size.
• Easily remove the membrane for culturing on agar or broth medium

 

Products in this data sheet may be covered by one or more patents including EP 1,012,327; US 6,358,730.

• Test any aqueous solution for microbial contamination using the principles of the Membrane Filter (MF) Technique.
• Ideal for quality control analysis of aqueous fluids used in pharmaceutical production. Individually labeled for lot traceability.
• Convenient for last-minute samples at the end of the day or work week. Maintain a supply of MicroFunnel filter funnels in case the autoclave breaks down and reusable hardware cannot be sterilized.
• The 300 mL funnel is ideal for processing larger samples without the "pour and wait" of smaller funnels. Processing larger samples can improve sensitivity and confidence in the results.
• Test for a variety of bacterial contaminants, such as Total Coliforms or Pseudomonas species, by choosing between the 0.45 and 0.2 μm pore sizes.
• MicroFunnel filter funnel with Metricel Black membrane provides a better contrast for counting yeast and other light-colored colonies.

Materials of Construction

• Filter Media: Supor (hydrophilic polyethersulfone), GN-6 Metricel (mixed cellulose esters), and Metricel Black (modified polyethersulfone) membranes
• Cylinder, Base, Lid, Petri Dish Base: Polypropylene
• Cover: Polystyrene
• Plug: Polyethylene
• Funnel Adapter: Polyethylene
• Support Pad: Cellulose

 

Effective Filtration Area

• 13.46 cm²

 

Dimensions

• 100 mL Funnels
  • Height:
    • 8.1 cm (3.2 in.) with Petri dish lid
    • 7.6 cm (3.0 in.) with cover
  • Diameter:
    • 6.4 cm (2.5 in.) with Petri dish lid
    • 6.1 cm (2.4 in.) with cover
  • 300 mL
    • Funnel Height: 9.1 cm (3.6 in.) with cover
    • Diameter: 8.8 cm (3.5 in.) with cover

 

Maximum Vacuum

• 63.5 cm Hg (25 in. Hg) (vacuum use only)

 

Gamma-Irradiated

• Validated dose 15 - 30 kGy

•  Sentino™ Microbiology Pump

Procedures for MicroFunnel™ LP Filter Funnel (with Petri Dish Lid Kit)

1. Dispense the contents of an ampoule of culture medium onto the absorbent pad in the Petri dish lid kit, supplied only with MicroFunnel LP, PN 4810. 
2. With Petri dish lid kit removed, perform filtration then access membrane by gently squeezing near the top of the funnel cylinder.
3. Remove the membrane filter from the base with forceps.
4. Place the membrane filter onto the broth-soaked absorbent pad in the Petri dish lid kit.
5. Cover, invert, and incubate.

Part Number	Description	Pkg	Price	Qty
MicroFunnel™ Filter Funnels, 100 mL
4800	MicroFunnel unit with 0.45 µm GN-6 Metricel® membrane, white, gridded, individually bagged	50/pkg	208.99
4804	MicroFunnel unit with 0.45 µm GN-6 Metricel membrane, white, gridded, individually bagged	200/pkg	835.97
4810	MicroFunnel LP unit with 0.45 µm GN-6 Metricel membrane, white, gridded, individually bagged, Petri dish lid kit	50/pkg	248.60
4801	MicroFunnel NB unit with 0.45 µm GN-6 Metricel membrane, white, gridded	50/pkg	192.82
4803	MicroFunnel unit with 0.2 µm Supor® membrane, white, gridded, individually bagged	50/pkg	241.02
4806	MicroFunnel unit with 0.2 µm Supor 200 membrane, white, no grid, individually bagged	50/pkg	246.38
4852	MicroFunnel unit with 0.45 µm Supor membrane, white, gridded, individually bagged	50/pkg	215.26
4805	MicroFunnel unit with 0.45 µm Metricel Black membrane, black, gridded, individually bagged	50/pkg	227.09
MicroFunnel Filter Funnels, 300 mL
4815	MicroFunnel 300 unit with 0.45 µm GN-6 Metricel membrane, white, gridded, individually bagged	20/pkg	113.36
4818	MicroFunnel 300 unit with 0.2 µm Supor membrane, white, gridded, individually bagged	20/pkg	116.48
4828	MicroFunnel 300 unit with 0.45 µm Supor membrane, white, gridded, individually bagged	20/pkg	118.26
4817	MicroFunnel 300 unit with 0.45 µm Metricel Black membrane, gridded, individually bagged	20/pkg	116.48
4819	MicroFunnel 300 unit with 0.8 µm Metricel Black membrane, gridded, individually bagged	20/pkg	116.48
Accessories and Replacement Parts
4701	Autoclavable adapters for vacuum manifold when using rubber stopper	3/pkg	42.02
4713	Vacuum pump adapter MicroFunnel filter funnel with Milliflex PLUS pump	1/pkg	25.29
4895	Lid kit accessory for culturing membrane in place	20/pkg	8.03
15408	1-place aluminum manifold	1/pkg	393.48
15411	3-place aluminum manifold	1/pkg	968.21
15413	6-place aluminum manifold	1/pkg	1,796.40
13157	Vacuum/Pressure pump, 115 V, CE	1/pkg	879.39
13158	Vacuum/Pressure pump, 230 V	1/pkg	1,042.57
4690	Forceps with multi-colored grips	3/pkg	88.19

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