4" Filters
For the small-time indoor gardener who needs to keep the smell at bay on a just a few plants in a small area, 4″ carbon filters take the cake as a compact, powerful method to odor removal. These filters pair well with our 4″ high velocity fans and can be used to either ventilate or recirculate smelly air. Shop now across our selection of small carbon filters today.
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KFI Filter Flanges
$8.95
KFI Green Line Filter 425S
$84.95
KFI Standard Line Filter 330
$90.70
Can-Filter Flanges
$7.15 – $25.59
Can-Lite 2600 Carbon Filter
$75.95
Can-Lite 9000 Carbon Filter
$23.67
GrowBright 4 Inch Tall Boy Carbon Filter
$79.95
GrowBright 4 Inch Jr. Carbon Filter
$54.95
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