Syringe Filter Puradisc 13,Device PVDF Filter media with Polypropylene Housing pore size 0.45 um,Dia 13mm ,100/pk; 1629 6784-1304 Syringe Filter Puradisc ,Device PTFE pore size 0.45um,Dia 13mm,100/pk; 1629/1 6784-2504 Syringe Filter Puradisc 25TF PTFE pore size 0.45um,Dia 25mm,50/pk; 1629/2 6784-2502