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4 inch (30 Gauge) Galvanized Steel Wall Exhaust Hood Bath Fan Vent – Damper – Screen – 11 inch Pipe – Item #3440GS

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A damper and bug screen in the 4-inch galvanized steel wall exhaust hood bath fan vent prevent outside elements and air from entering the vent when not in use. The damper opens and allows the exhaust air to exit the vent through the sufficient opening which has 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.

Bath Fan Vent

The Lambro 4-inch (30 Gauge) galvanized steel exhaust hood vent with bug screen and 11-inch pipe 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:

  • 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 30 gauge galvanized steel for durability and longevity
  • Rust-resistant and non-corrosive
  • 11-inch length pipe for through-the-wall installation
  • Maximum exhaust airflow – minimum back pressure
  • Opening and closing 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)

Product Contains:
(1) 4-inch galvanized steel exhaust hood vent – damper – screen
(1) 4 inch x 11 inch galvanized steel pipe


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3460GS

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Item Number:
3440GS
Pack Quantity:
10
Package Type:
Bulk Pack


Type

Wall Cap

Diameter

4"

Material

Galvanized

Has Damper

Yes

Has Screen

Yes

Has Collar/Tail

Yes