Parts list: № Number Qty Name Options 1 BN908313 1 Extension 2 BN272023 1 Air Duct 3 BN272208 1 Converter Kit 4 BN272218 1 Air Duct Next page: ST776855 Row Spacing Conversion, Attachment ST777793 Attachment, Duct / Post Assembly, 36" Rows ST777964 Attachment, Row Spacing Conversion, 4 Row 30 in. to 4 Row 38-40 in. ST449127 Offset Duct Door Assembly 2.5" ST449130 Ladder Duct (023001 - ) ST449140 FAN IDLER AND LINKAGE ST449133 Air Tubes 6" ( - 025000) ST449132 UNIT TO BASKET DUCTS (INNER DUCTS SHOWN) ( - 025000) ST449131 UNIT TO BASKET DUCTS (OUTER DUCTS SHOWN) ST449125 Large outside cotton door conversion from p12 38/40 to vrs 2m