Diversitech 230FJ4 10cm Flex Joint Fitting is an accordion style piece of Speedichannel lineset covering. The flex joint can be extremely flexible routing a SpeediChannel system around virtually any type of obstacle. Each joint is 50cm long and can be combined together for longer flex runs. Unlike competitor systems, the Diversitech flex joint does NOT require the use of a union coupling. The Diversitech flex joint slides tightly inside the Speedichannel system.