FLX-PRV plenum boxes are intended for flexible oval ducts
in ventilation systems concealed with cast-in-place mortar
or concrete.
The FLX-PRV features 4 oval branch ports, with two ports at
the opposite sides. With the branch ports at different sides,
the plenum box can provide air to multiple air supply diffusers.
Both plenum box types are intended for air supply and exhaust
systems. When concealed in cast-in-place floors or insulation
spaces, they are a perfect solution for building heat-recovery
ventilation systems in single-family houses.
