2420-OP / 2425-OP 4 Inch Stormproof Operable Louvers
The Alumavent 2420-OP/2425-OP is a four inch (102 mm) deep, extruded aluminum operable stormproof louver designed for applications where available space does not allow for a separate stationary louver and damper. The stormproof blade design provides excellent protection from water penetration with minimal static pressure drop while retaining a high free area. The 2420-OP/2425-OP is available with a manual pull chain operator, hand crank, or a variety of electric actuators.
Standard Construction
Custom configurations available
This product can be manufactured in alternative materials, sizes, and mounting options to meet your project requirements. Contact us to discuss specifications.
Contact UsAvailable Accessories
Additional Notes
Certification and standards information for this product is not yet available. Please contact Alumavent for more details.
The 2420-OP/2425-OP is part of Alumavent's operable louver range, combining the weather resistance of a stormproof louver with the airflow control of a damper in a single unit. This makes it particularly well suited for mechanical penthouses, rooftop equipment enclosures, and wall openings in high-rise and commercial buildings where space is at a premium and both weather protection and adjustable ventilation are required.
Documents
- Duranar Colour Chart
- Ventex Colour Chart
- 2000 Series - Louver Schedule Sept 2021
- 2420-OP / 2425-OP 4" Operable Stormproof
- Accessories Sept 2021
- CSI Specification, Division 23, Model 2420-OP - 2425-OP Sept 2016
- CSI Specification, Division 8, Model 2420-OP - 2425-OP Feb 2026
- Louver Installation Rev Nov-2025
- Louver Options and Accessories
- RAL Colour Chart
Finishes
Note: Colours shown are approximate electronic representations. Actual colours may vary. Physical colour samples are available upon request.
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