Kinesis 0.2 um PTFE filter for venting PTFE Vent Filter, Sterile, 0.2 Micron, 50mm, 6 to 12mm hose BARB, PTFE Vent Filter, Sterile, 0.2 Micron, 50mm, 6 to 12 mm hose BARB, 10/Pk Product code Vent Filters with PTFE Membranes: pore size 0.22 6-12 mm Hose Barb.