Target2™ PTFE Syringe Filters, 0.45μm, 30mm, with Pre-Filter. Low extractable membranes and housings ensure that no filter-borne contaminants are added to your sample · Performance-tested under actual HPLC conditions · 30mm Hydrophilic PTFE Syringe Filters, Advantec, 0.45 Micron, 13 mm, 1