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Product Description
Lambro Industries - 3440GSNT The Lambro 4-inch flush mount galvanized steel exhaust hood vent with bug screen is for venting through the wall. It features an opening and closing damper that prevents outside elements and air from entering the vent. The damper seals the vent opening when the bath fan is not running because no exhaust air exits the vent. When the appliance operates, the exhaust air pressure pushes the damper open to let the exhaust air escape from the vent. A preinstalled screen prevents critters from entering the home through the vent when not in use.
The exhaust vent is for new and replacement installations over an existing 4-inch opening. It features an opening with a net-free area of 11 square inches. When the bug screen is removed, the net-free area of the unrestricted opening is now 20.5 square inches.
The vent’s manufacturing material is 30 gauge galvanized steel for durability and longevity.
Make sure to check local building codes before installation.
Product features and benefits:
Features- Bulk pack
- Features an opening containing the screen with a net-free area of 11 square inches
- For new or replacement vent installations
- Made of 26 gauge galvanized steel for durability and longevity
- Flush mount for through-the-wall installation
- Maximum exhaust airflow – minimum back pressure
- Opening and closing spring controlled damper stays closed when not in use
- Aluminum bug screen prevents critters from entering the home through the vent
- Not for use with clothes dryer venting
- Installation screws (not included)
(1) 4-inch galvanized steel exhaust hood vent – damper – screen – flush mount