
Lambro 4-In. Aluminum Exhaust Roof Vent Cap with Screen, Damper, and Collar, 109R
This is Lambro's 4-In. Aluminum Roof Cap for venting bathroom exhaust fans. The damper design allows for outbound airflow and no back draft from outside air. The metal screen prevents outside elements from entering through the vent. It boasts a screen, damper, and 1.75 in. collar.
Features
- Opening/closing damper prevents outside elements from entering the vent
- Compatible with part number 636AL
- Maximum exhaust outflow with minimum back pressure
- Screen prevents birds from nesting inside of vent
- Designed to prevent leaks with proper installation
- Not recommended for clothes dryer venting
Original: $39.99
-65%$39.99
$14.00More Images




Lambro 4-In. Aluminum Exhaust Roof Vent Cap with Screen, Damper, and Collar, 109R
This is Lambro's 4-In. Aluminum Roof Cap for venting bathroom exhaust fans. The damper design allows for outbound airflow and no back draft from outside air. The metal screen prevents outside elements from entering through the vent. It boasts a screen, damper, and 1.75 in. collar.
Features
- Opening/closing damper prevents outside elements from entering the vent
- Compatible with part number 636AL
- Maximum exhaust outflow with minimum back pressure
- Screen prevents birds from nesting inside of vent
- Designed to prevent leaks with proper installation
- Not recommended for clothes dryer venting
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
This is Lambro's 4-In. Aluminum Roof Cap for venting bathroom exhaust fans. The damper design allows for outbound airflow and no back draft from outside air. The metal screen prevents outside elements from entering through the vent. It boasts a screen, damper, and 1.75 in. collar.
Features
- Opening/closing damper prevents outside elements from entering the vent
- Compatible with part number 636AL
- Maximum exhaust outflow with minimum back pressure
- Screen prevents birds from nesting inside of vent
- Designed to prevent leaks with proper installation
- Not recommended for clothes dryer venting























