FURNACE DUCTWORK & ACCESSORIES 4" X 10" X 6" UNIVERSAL BOOT GALVANIZED Product Code: 48030351-00 $12.99 5" TOP TAKE OFF GALVANIZED Product Code: 48030356-00 $9.99 6" TOP TAKE OFF GALVANIZED Product Code: 48030357-00 $12.99 4" - 3" REDUCER GALVANIZED Product Code: 48030358-00 $10.99 5" - 4" REDUCER GALVANIZED Product Code: 48030359-00 $10.99 6" - 5" REDUCER GALVANIZED Product Code: 48030360-00 $11.99 4" - 5" INCREASER GALVANIZED Product Code: 48030361-00 $10.99 5" - 6" INCREASER GALVANIZED Product Code: 48030362-00 $11.99 6" - 7" INCREASER GALVANIZED Product Code: 48030363-00 $11.99 5" END CAP GALVANIZED DUCT Product Code: 48030364-00 $6.99 6" END CAP GALVANIZED DUCT Product Code: 48030365-00 $7.99 4" X 90° ADJUSTABLE ELBOW GALVANIZED Product Code: 48030366-00 $4.99 5" X 90° ADJUSTABLE ELBOW GALVANIZED Product Code: 48030367-00 $5.49 6" X 90° ADJUSTABLE ELBOW GALVANIZED Product Code: 48030368-00 $6.99 4" GALVANIZED TEE Product Code: 48030369-00 $17.99 5" GALVANIZED TEE Product Code: 48030370-00 $17.99 6" GALVANIZED TEE Product Code: 48030371-00 $18.99 7" X 90° ADJUSTABLE ELBOW GALVANIZED Product Code: 48030372-00 $9.99 4" X 30" PERIMETER GALVANIZED PIPE DUCT Product Code: 48030390-00 $9.99 4" X 60" PERIMETER GALVANIZED PIPE DUCT Product Code: 48030391-00 $11.99