Draft blocker backdraft damper duct draft stopper backflow preventer inline fan vent vent deflector 10 inch 4 3 out of 5 stars 44 23 95 23.
3 25 x 10 duct damper.
They are primarily designed to terminate or block off a rectangular duct run in hvac systems.
It is used to transition from plenums duct board or lined or a flat surface to 3 25 in.
This vent features a hinged backdraft damper and can be ordered either with or without a removable inch bird screen.
This master flow 3 1 4 in.
Round galvanized wall vent with spring return damper.
The famco wv310a fits kitchen ducts sized 3 inch x 10 inches providing 26 square inches of free area.
In stock and ready to ship.
The master flow 10 in.
Quality constructed from heavy duty 020 aluminum.
Powder coated galvanized steel pest control exterior vent cover in white.
Choose from our selection of standard duct and fittings automatic airflow dampers airflow dampers and more.
Rectangular stack duct caps also called clean out plugs or tee caps simply cap off a round or rectangular duct run.