USMS-P air exhaust vents are PVC-based products designed
for use in home ventilation systems. The flexible collapsing
louvres close the opening when there is no exhaust pressure
coming out of the ductwork.
The air exhaust vent is installed
with screws. The inward sleeve fits round spiral ducts and
flexible ducts. The universal joint makes one product size fit
100, 110, 120 and 125 mm ducts.
