Hmmm, I can only find that it's made from plastic. 'Seems like other people have had problems with cracking too. I'll try with silicone and hope it works in the long run. I'm not going to ditch the filter because I'd like to think that I got a good deal, rather than being gipped, lol. Thanks everyone for your input!
Silicone should work just fine, I mean, think about it, our tanks are glued with it!
I was just thinking, if you were careful with a correct solvent which melted (welded) the plastic together, you could make an almost invisible bond ... if you are like me, silicone is OK ...
Regards,
JS