This time I'm looking for one of those connectors and tubing. I want to put 2 cages together. One way is to try and put 2 cages together as one. The other seems to be to connect them with tubing. I've seen the tubing and the attachments used. The part that attaches to the cage then the tube is connected to it. Any ideas on where I can get the connectors for the tubing. Is there a possibility of the ferrets working them loose. I know they sometimes can in superpet cages with tubing. KG [Posted in FML issue 4516]