304 Stainless Steel PTFE Battery Vent Tube Joiner The Exotronic 'T' 10mm OD Stainless Steel PTFE Tube Joiner is designed for lithium battery installations where two vent lines need to be routed into one shared external vent path. Built for use with 10mm OD PTFE tube, this compact stainless steel fitting provides a clean, professional connection point for battery compartments,...