The Ticon titanium O2 sensor bung for 1.75in to 2.5in tubing comes with M18x1.5 threads and a coped end to fit and weld into small-diameter exhaust or test pipes. It provides a compact sensor mounting point for tighter plumbing runs where a standard O2 sensor must be installed into narrow tubing without compromising wall fit or weld quality.
Ticon Industries Titanium O2 Sensor Bung 1.75in to 2.5in Tubing (M18x1.5) - Coped End