The 7 inch diameter Nordfab Ducting QF 2.0 inline spark trap is a high-quality industrial dust collector designed to capture and cool the any sparks in the duct work in metalworking processes. Made in the United States by the reputable brand Nordfab, this unit is a reliable and effective solution for cooling sparks in your duct work prior to reaching your fan or filtration system.  With its durable construction and proven performance, this spark trap is a critical safety device for any metal working operation.