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Bifold Door Roller Replacement Suitable for bifold doors These rollers are constructed of stainless steel and resist wear and breakage for a long-term use. These rollers are strong enough to support your doors' weight and are easy to install. This top-quality nylon roller guide is made for replacement in bi-fold door panels weighing up to 30 pounds. It can be used with aluminum profiles from System S1000. How do you identify a damaged bifold door roller Bifold doors are a fantastic storage solution for closets however, like all things else, the