GrowBright 4 Inch Duct Filter
Improve air quality in the grow room with GrowBright duct filters. Dual-layer design keeps contaminants out with minimal airflow restriction. The outer screen catches bugs and larger particles while the inner activated-carbon lined layer traps finer particulates such as dust, spores, and pollen. GrowBright duct filters are also great for keeping debris out of air-cooled reflectors. Filters install easily over duct/flanging and secure tightly with velcro fasteners.
GrowBright 4″ Duct Filter
Improve air quality in the grow area with GrowBright duct filters, a simple dust and small particulate filtration elastic cover for air intakes.
• Dust & small particulate filter for 4″ 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 4″ round ducting/duct flanging