2μm Precolumn Filter Insert, 5/pk,Waters,WAT005139

BOLA Frits for Suction Filters, PTFE, 20x14mm,10µm

Filter SS, 2µm,12.70mm OD, 25.4mm long, 1/16"

EXP2 Pre-Column Holder and (3) Filter Cartridges, 0.5μm