This support part for the Ultimate BRS 30 is no longer available.
We have completely re-designed the telescoping collars on our current line of work stands utilizing metal band clamps and nylon bushings which has been a great improvement.
Unfortunately, if you have problems with your BRS 30 collar, new collars are not compatible with any previous tripod designs.
Your only option to repair your current stand is to purchase an updated tripod assembly that will work with your current clamp head mechanism.
Please follow this link to further details and to purchase the tripod assembly that will upgrade your current stand to our improved design. (New tripod link here)