Taco Pro Fit BRG-A-200 Bearing Assembly with Impeller. Taco's in-line circulator line Pro Fit is an efficient and cost effective replacement to Armstrong and Bell and Gossett's line of circulators. This bracket can replace the Bell and Gossett 100 bearing assembly part number 189134, 118844. It also can replace the Armstrong S-25 bearing assemble for their S-25 pump or part number 816019-002 and 810019-001.