Description 1-1/2" Square Bore - Replaces Krause 40-157, Kewanee B3587, Brillion 1K521, McFarlane RD-4498, FD211RM This item is a suitable alternative for the following: 308-DHU112S211, 1K521, 40-157, B3587, FD211RM, RD-4498