Andersen 3223 Ultimate Connection 6″ Square Coupler Tube with hardware (Gooseneck Mount only)

Ultimate Connection 6″ Square Coupler Tube with hardware (Gooseneck Mount only) Ultimate Connection 6″ Square Coupler Tube with associated hardware (Gooseneck Mount only). . . . This coupler tube is designed for use with Part #3221 / #3221-TBX and Part #3165-RDH / # 3165-SQH. . It DOES NOT usually work with Part #3220 / # 3220-TBX. . . . Includes all hardware to attach to the Ultimate Base.