Sartorius 93PRAP06HB-12--A Sartobind® Lab Protein A Membrane Absorbers, 2.1ml Bed Volume , 4 Absorbers/Unit - 08-051 | Genesee Scientific Sartorius 93PRAP06HB-12--A Sartobind® Lab Protein A Membrane Absorbers, 2.1ml Bed Volume , 4 Absorbers/Unit - 08-051 | Genesee Scientific