Back-draft Shutters

Greens Horticulture Verified independent store

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These handy additions to ductwork help reduce unwanted odours by closing ducting when the ventilation is turned off. Available in a variety of sizes, these shutters are especially useful for stopping cold air from entering your growing environment when fans are switched off. Back Draft Shutters are made from a galvanised steel case and have two spring-loaded aluminium shutters. Show more