Millipore UFC900324 Regenerated Cellulose Amicon Ultra Centrifugal Filter Unit with PLBC Ultracel-3 Membrane, 15mL Capacity, 3kDa NMWL, 29.7mm Diameter x 122mm Length, 7.6 sq cm Membrane (Pack of 24): Science Lab Centrifugal
EMD MILLIPORE UFC501096 Amicon Ultra Centrifugal Filter Unit with Ultracel-10 Membrane, Clear, 0.5 mL Volume, 1 sq. cm. Filtration Area, 10.8 mm Diameter x 49.9 mm L: Amazon.com: Industrial & Scientific
A critical evaluation of Amicon Ultra centrifugal filters for separating proteins, drugs and nanoparticles in biosamples - ScienceDirect