Main -> Separating systems -> Filtration -> Membrane filtration units
Filter Units with Bottletop Filters with PES Membrane, NALGENE®, IDL

Filter funnels and bottletop filters with PES membrane
0.2 µm and 0.45 µm pore size, gamma sterilized disposable filter, polystyrene housing, non-cytotoxic, non-pyrogenic. Compared to cellulose nitrate, cellulose acetate and nylon membranes, this hydrophilic membrane has very low extractable levels, high flow rates with aqueous solutions and low protein binding. Nalgene offers this system as a complete filter system and as bottle-top filter, fits all 33-mm-Ø and 45-mm-Ø standard bottles with threads. (0.2 μm units have the Supor-MachV-membrane; 0.45 μm units have the Supor-membrane)
Filter funnels and bottletop filters with new improved PES membrane
Now with the new improved PES-membrane with 0.2 μm pore size. The advantages of the PES Supor MachV membrane consist of the asymmetrical (V-shaped) pore structure. This results in higher flow rates and improved standing times compared with standard PES-membranes. All filter units are individually packed in a sterile way. Batch numbers, pore size and membrane type are printed on the filter part for easy identification and, for filter systems, additionally printed on the filtrate bottle.

Bottletop filters with PES membrane

Top part with filter, individually packed in a sterile way. Batch number, pore size durability and membrane type are printed on the reservoir unit for easier identification. Suitable for the common bottles with 33-mm Ø and 45-mm Ø diameter. Otherwise same as above.

Volume
ml
Thread
mm
Pore size
µm
Membrane Ø
mm
Order No.PU
pc/Pack
 150330.25026 87 5963312
 150330.455026 87 9633412
 150450.25026 87 5964512
 150450.455026 87 9645412
 500330.27526 87 5953312
 500330.457526 87 9533412
 500450.27526 87 5954512
 500450.457526 87 9545412
1000330.29026 87 5973312
1000450.29026 87 5974512

Available only in original packaging units. No fractions possible.



Filter funnels with PES membrane

Complete filtering system consisting of a top part with filter and filtrate bottle, individually packed in a sterile way. Batch number, pore size, durability and membrane type are printed on the upper filter unit and filtrate bottle for easier identification.
New unit with 50 ml volume, for direct filtration in a conical centrifugal tube. Otherwise same as above.

Volume
top part
ml
Volume
filtrate bottle
ml
Pore size
µm
Membrane Ø
mm
Order No.PU
pc/Pack
 150  500.15010 87 5651012
1501)  500.25010 87 5642012
 115 1150.25026 87 5242072
 115 1150.455026 87 1244512
 150 1500.25026 87 5652012
 150 1500.455026 87 1654512
 250 2500.15010 87 5681012
 250 2500.25026 87 5682012
 250 2500.455026 87 1684512
 500 5000.17510 87 5661012
 500 5000.27526 87 5662012
 500 5000.457526 87 1664512
 500 5000.29026 87 5692012
 500 5000.459026 87 1694512
100010000.29026 87 5672012
100010000.459026 87 1674512

Available only in original packaging units. No fractions possible.




1) 50 ml cone-shaped centrifuge tube as collection vessel