I need to verify which replacement chain I need for my climber, but can't seem to find any info on it. It is a discontinued API model bought aproximately 5 years ago. It is aluminum, and you face the tree while climbing AND while sitting. You cannot turn around in it. You are totally encompesseed by it, it has two bars across the back with a foam covering ang a foam sling seat. Any help would be greatly appreciated. I will be truely impressed if anyone can find an answer to this problem. Thanks,
Nate