VENTS - METAL ROUND BACK VALVE ?125


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Prezzo scontato€14.95
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Descrizione

Backdraft spring-loaded damper designed for automatic shutoff of the round ducts and preventing back draft of air when ventilation system is switched off. Damper vanes are opened with the pressure generated by air stream and are closed by the spring.

With galvanized axis, and riffles to prevent spring displacement.

?125

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