Low-profile design; polystyrene
- Three membrane materials available: Cellulose Nitrate (CN), Surfactant Free Cellulose Acetate (SFCA) and Polyethersulfone (PES)
- Membrane diameter 50 mm with surface area 17.3 cm2
- Provide fast flow rates
- Graduations on upper and lower chambers, padless membrane support plate
- Gamma-sterilized, non-pyrogenic
- and non-cytotoxic, for use with sensitive cell lines
- Single pouring/venting spout provides simple/convenient handling and minimizes potential contamination
Nalgene 121 Filter Units with Cellulose Nitrate (CN) Membranes
Triton-free
- Excellent wetting properties
Single-use units can be used for cold sterilization, clarification, prefiltration and ultracleaning of buffers and other aqueous solutions, as well as microbiological media.
Nalgene 122 Filter Units with Surfactant-Free Cellulose Acetate (SFCA) Membranes(4619A58, A62)
- Low protein binding
- Minimal clogging with no loss of specific proteins
Nalgene 124 Filter Units with Polyethersulfone (PES) Membranes (4619B01)
- Low protein binding
- Inherently hydrophilic
- No external wetting agents/surfactants
- Low extractables
- Greater chemical resistance than cellulosic (acetate, nitrate) membranes