The Lambro 4-in. Aluminum Exhaust Hood Vent with 11-in. Pipe is for venting through the wall. The damper seals the vent opening when the clothes dryer or 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. 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 20.5 sq. in., allowing for less back pressure. The vent’s manufacturing material is 26-gauge aluminum for durability and will not rust to maintain longevity. Make sure to check local building codes before installation.
- Made of 26-gauge aluminum for durability and longevity
- For new or replacement vent installations
- Recommended for clothes dryer and bath fan exhaust installations
- Mounts over existing 4 in. openings
- 11-in. pipe for through-the-wall installation
- Features an opening with a net-free area of 20.5 sq. in.
- Installation screws not included



















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