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The Deflect-O HSM4B features fixed blades designed for optimal airflow management. This four-inch louver is manufactured in brown plastic and includes a protective screen, ensuring durability and functionality in various applications. It is suitable for both residential and commercial use, providing an efficient solution for venting needs.
The HSM4B is built for durability and airflow efficiency.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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