Black Flex Duct R6 SKU IFP4R6 Please select 4" POLY FLEX 25' RPR25R6B(BWN)5" POLY FLEX 25' RPR25R6B(BWN)6" POLY FLEX 25' RPR25R6B(BWN)6" POLY FLEX 50' RPR50B R6(BWN7" POLY FLEX 25' RPR25R6B(BWN)8" POLY FLEX 25' RPR25R6B(BWN)9" POLY FLEX 25' RPR25R6B(BWN)10" POLY FLEX 25' RPR25R6B(BWN10" POLY FLEX 50' RPR50R6(BWN)12" POLY FLEX 25' RPR25R6B(BWN14" POLY FLEX 25' RPR25R6B(BWN16" POLY FLEX 25' RPR25R6B(BWN18" POLY FLEX 25' RPR25R6B(BWN*DISCONTINUED - SEE IFM20R6* Log in to view price