Ferplast Cage Tube Fittings
As described. Allows you to connect any type of Ferplast tube.
Rings batteries as I hoped, the right size (because my cage is old enough) and solid. I made a new cage for my friend's 4-legged friend.
Cage tube connection very good, good quality but does not agree on all pipes.
These connectors are just perfect: easy to use and even delivered with a cache to prevent rodents from gnawing the visible parts. Satisfied!