Bell & Gossett P03250, Flange (2)NFI, BI, Equivalent Size 1-1/4AA, 1.25x1.25x5.25, 1.25AAB, for use with Model 106189, 106190, PL-36, PL-55, LR, IB102206, BI102207, AB102208, Series e-60, 90, e-90, 100, PL, LR, PR, e90 ECM, 60