Back-Draft Shutters are used to close ducting runs when fans are turned off.
Made from galvanised steel using spring loaded aluminium shutters, they help reduce unwanted odours escaping your grow room as well as stopping cold air from getting in.
Available in a range of sizes from 100mm/4" up to 315mm/12".
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.
Sometimes these components are supplied without the neoprene seals around the outside.