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GrowBright 4 Inch Duct Filter Insert




Activated-carbon lined insert for the GrowBright 4″ Duct Filter.


In stock

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GrowBright 4″ Duct Filter Insert

Replacement filter insert for the GrowBright 4″ Duct Filter. Does not include outer filter- sold serperately.

Improve air quality in the grow area with GrowBright duct filters, a simple dust and small particulates filtration elastic cover for air intakes.


•  Dust & small particulate filter for 8″ round duct/flange air intakes
•  Low restriction dual-layer design
•  Outer bug/larger-particle screen layer
•  Inner activated-carbon-lined smaller-particulate layer
•  Fits over standard 8″ round ducting/duct flanging

Weight 0.11 lbs
Dimensions 4.75 × 4.75 × 0.25 in


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