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- 8” x 25’ Flex Duct- Flex source reusable duct- Heavy duty- For use with negative air machines
![8" x 25' Flex Duct](https://res.cloudinary.com/dyx4yhvoq/image/fetch/w_800,h_800,c_limit,f_auto,q_auto/https://www.otssupply.com/v/vspfiles/photos/NA6000-2.jpg "8" x 25' Flex Duct")
![12" x 12" HEPA Filter](https://res.cloudinary.com/dyx4yhvoq/image/fetch/w_300,h_300,c_limit,f_auto,q_auto/https://www.otssupply.com/v/vspfiles/photos/NA1001-2.jpg "12" x 12" HEPA Filter")