Main -> Separating systems -> Filtration -> Membrane filtration units
Reusable Bottletop Filters, NALGENE®, IDL
1 Polysulfone (PSF) bottle-top filters with silicone O-Ring

Can be autoclaved repeatedly, intended for use with threaded 33 or 45 mm dia. media bottles. Suitable for pressure and vacuum filtration up to 0.6 bar. Non-breakable, non-toxic. Includes seal, cap and tubing adapter made of polypropylene. 2 filter upper sizes available (250 or 500 ml), which accept 47-mm or 50-mm membranes.

Volume
top part
ml
Thread
mm
Order No.
5003326 87 32133
5004526 87 32145


2 Polysulfone (PSF) filter holder with filtrate bottle

You will no longer need to use stainless-steel vessels or breakable glass Büchner flasks. Graded filtrate bottle. Two connectors for connecting the tubes to negative pressure or syringe filter. A cotton plug can be inserted into the hose adapter for sterile aeration. Tubes of an inner diameter of 6 to 8 mm can be connected to the adapter. Closed with a cap, the sterile filtrate can be stored in the bottle for greater user comfort. Autoclavable, graded, patented.

Volume
top part
ml
Volume
filtrate bottle
ml
Overall width
incl. side-arms
mm
Filtrate bottle Ø
mm
Height incl.
cover ports
mm
Order No.
250 250110 8318010 87 30400
500 50013411723010 87 30405
500100013411429310 87 30410


3 Polysulfone (PSF) filter holder with funnel

Suitable for use on filter bottles or suction devices together with an appropriate rubber stopper with bore hole. Supplied with an easy-to-use, non-twisting NALGENE vacuum seal that may be used instead of a rubber stopper no. 7 or no. 8 with 15 mm bore hole. Autoclavable, patented.

Volume
top part
ml
Ø
mm
Height incl.
cover ports
mm
Order No.
250 9419010 87 31400
50012021410 87 31405