Z-Vent Concentric Vent Termination, 4" in 4" out

4″ Z-Vent Concentric Vent Termination designed for use with tankless water heaters and high condensing boilers that bring in fresh air intake using a 4″ port. (also available in other sizes/combinations of exhaust and intake diameters).
See Z-Vent Dimensional Data for a complete list of parts.