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Nalgene® filter units with PES (polyethersulfone) membrane, blue collar.
-Receiver ergonomically designed for better stability.
-Features a side arm with a tubing adapter, internal dimension Ø 6.5 -9.5mm
-Lot number, membrane type and pore size clearly marked on each unit.
-Standard collar 45mm.
-250 and 500ml units provided with a 75mm membrane for a 2 x times higher speed.
-115ml has a shorter form for a better stability.
PES membrane has excellent qualities:
-Protein binding rate lower than with other membranes
-Hydrophilic membrane eliminating the need for wetting agent.
-Excellent transfer flow rate, low level of extractable, better chemical resistance than with nylon or acetate membranes.
-The Ø 90mm membrane allows vacuum filtration for 1 litre liquid or more of cell culture media and serum.
 

 
Reference Volume ml Pore size µm Ø membrane mm SU Price
115 0.45 50 12
150 0.45 50 12
250 0.45 50 12
500 0.45 75 12
500 0.45 90 12
1000 0.45 90 12
 
 
 
 
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