Jan 25, 2021 · Azzota® Syringe Filter, PTFE, Diameter: 33mm, Pore Size: 0.45um, 100/pk | eBay Azzota® Syringe Filter, PES, Diameter: 33mm, Pore Size: 0.45um, 100/pk $202.39 Azzota® Microporous Filter, PTFE, Diameter: 13mm, Pore Size: 0.45um, 100/pk $63.24 + $21.39 shipping Azzota® Syringe Filter, Nylon, Diameter:25mm, Pore Size:0.45um, 100/pk (Sterile) $164.44