This 14-inch replacement roll brush fits Rainbow/Rexair canister vacuum power nozzles for D3, D4, SE, D3C (R-1650C), D4C (2800C), and D4C SE (R-4375C) configurations. The belt rides on the end of the roll brush, not in the center - this is a key identifier; verify this matches your power nozzle before ordering.

Complete roll brush with both end bearing caps included. Compatible replacement for Rainbow/Rexair OEM part R-1866 (also listed as 79-3400-98). Fits models 1650, 2800, and 4375.