Description
Concentric vents make it
easier to have a two-pipe
installation for high
efficiency furnaces. These
vents simplify installation
and only require one hole
through the wall or roof where
the pipes terminate. Without
using these vents, the
installation would require
cutting two holes through the
home, one for each pipe. These
vents save time and money by
reducing the amount of work
required. Available in 2in,
3in or 4in intake vent sizes.