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ID: B011KJMCUU
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neverest® RKI 4" Inline Backdraft Damper, One-Way Airflow Check Valve
Retail Value: $14.45
$5.00
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Condition: Pre-Owned
Description
ONE-WAY AIRFLOW CONTROL: This passive inline check valve allows air to exit while automatically blocking outside air from entering. Perfect for stopping cold drafts, odors, and backflow in your home’s 4-inch ventilation ducts.
AIRTIGHT GASKET SEAL: Features a high-quality internal rubber gasket and foam padding. Unlike standard dampers, the RKI ensures a tight seal to maximize energy efficiency and prevent annoying "whistling" noises from air leakage.
REINFORCED SPRING-LOADED BLADES: Equipped with a strong internal spring that keeps the aluminum flaps closed when not in use. The shutter opens smoothly under pressure from your exhaust fan and snaps shut instantly when airflow stops.
SILENT OPERATION: Designed with noise-dampening foam strips to prevent the aluminum blades from rattling or clanging against the housing. Enjoy quiet ventilation even in windy conditions or high-pressure systems.
EASY INLINE INSTALLATION: The galvanized steel housing fits snugly inside any standard 4-inch (100mm) circular duct. Ideal for upgrading existing dryer vents, kitchen range hoods, bathroom fans, and HVAC systems.
AIRTIGHT GASKET SEAL: Features a high-quality internal rubber gasket and foam padding. Unlike standard dampers, the RKI ensures a tight seal to maximize energy efficiency and prevent annoying "whistling" noises from air leakage.
REINFORCED SPRING-LOADED BLADES: Equipped with a strong internal spring that keeps the aluminum flaps closed when not in use. The shutter opens smoothly under pressure from your exhaust fan and snaps shut instantly when airflow stops.
SILENT OPERATION: Designed with noise-dampening foam strips to prevent the aluminum blades from rattling or clanging against the housing. Enjoy quiet ventilation even in windy conditions or high-pressure systems.
EASY INLINE INSTALLATION: The galvanized steel housing fits snugly inside any standard 4-inch (100mm) circular duct. Ideal for upgrading existing dryer vents, kitchen range hoods, bathroom fans, and HVAC systems.
Location: DFW, TX
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