Part Code: AGI5190-5268. Pack Size: 1000. Econofilter PTFE 25mm diameter 0.45um pore size 1000/pk quantity. Add to Quote. Add To Quote. Click here to view Items in your quote cart. Part Code: AGI5190-5268 Categories: Aijiren Technologies, Sample Preparation & Filtration. Description. Captiva Econofilter, PTFE membrane, 25 mm diameter, 0.45 µm