Features PTFE (Polytetrafluoroethylene) membrane filter.
Inert, PTFE is suitable for aqueous or non-aqueous applications. Ideal for HPLC.

Midi-Spins are centrifuge filter devices designed for filtration, concentration, desalting, and deproteinization of small volumes of aqueous and non-aqueous solutions. A Complete device consist of a polypropylene insert that houses a filter membrane and a tapered 5.0ml reservoir (filtrate) tube (12mm diameter) with hinged cap (fits into standard centrifuges). Solutions to be filtered are placed into the insert which is then placed into the reservoir (5ml tube). Filter size is 11mm diameter.  Maximum operating temperature is 50 degrees Celsius. Inserts can accommodate sample volumes up to 2ml. Hold-up to volumes on the membranes are resulting in minimal sample loss. Available in non-sterile only. Maximum centrifugal force is 5,000 x G.

Outside diameter of reservoir tube is 12mm.

All components, except for the filter membrane, are manufactured from high purity polypropylene.