The BOxG series is a line of stainless steel bushing. The series includes eight models: BO8G, BO12G, BO15G, BO20G, BO25G, BO32G, BO40G, and BO50G. The models in the series range in sizes, with the smallest at a size of 0.25" and the largest at a size of 2". The smallest model has a nominal diameter of 8 while the largest model has 50DN.