Rapidly concentrates 20 mL sample volumes to 0.5 mL. Provides high recoveries, typically > 90%. Low protein-binding Omega™ membrane and polypropylene housing minimize losses due to non-specific binding. Versatile Omega membrane is available in a variety of MWCOs. Built-in deadstop prevents spinning to dryness. Color-coded for easy identification. Best suited for concentrate and desalt proteins, Exchange buffer or remove salt of chromatography eluates, Recover proteins or other molecules from cell culture supernatants.




MAP003C36 = 3K, gray

MAP010C36 = 10K, blue

MAP030C36 = 30K, red

MAP100C36 = 100K, clear

Filtration Area

7.2 cm2


Diameter: 50 mm

Length: 12.0 cm


0 - 40 °C


Sample Volume: 20 mL

Final Concentrate Volume: As low as 450 μL

Filtrate Receiver Volume: 22 mL

pH range

1 - 14

Centrfugal force

5,000 x g (ultrafiltration)

14,000 x g (microfiltration)


Non sterile, but can be sterilized with ethanol