Lambro 3440 SVH4AL

The Lambro 4 in aluminum exhaust hood vent with 11 in 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 clothes dryer or bath fan are 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. The exhaust vent is for new and replacement installations over an existing 4 in opening. It features an opening with a net-free area of 20-1/2 sq-in, allowing for less back pressure. The vent's manufacturing material is 26 ga aluminum for durability and will not rust to maintain longevity. Make sure to check local building codes before installation.

Lambro Exhaust Wall Hood Vent, 4 in, Aluminum