Back Draft Shutter

The Grow Superstore Verified independent store

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When your fans are off, seal your grow room; ideal for sealing off your outlet, stopping bugs from entering and heat from escaping. Manufactured from high quality galvanised steel with two spring-loaded blades. Available in size - 4" (100mm) 5" (125mm) 6" (150mm) 8" (200mm) 10" (250mm) 12" (315mm) Show more