Can you tell me the difference of the 2 cables you make to connect Tunze Streams as I am knew to this and want to connect 2 x Tunze 6095's which will eventually be replaced with 2 x Streams 3's

https://www.sewatec.de/ghl-profiluxt...nze-l1-l3.html
https://www.sewatec.de/ghl-profiluxt...nze-l2-l4.html