Model 2520(A)
2 1/2" X 1 1/2" polycarbonate adapter (intermediate piece)2 1/2" female inlet threads: NHT, NY Corp., NY(FD) Chicago(FD), CSA (5 X 3 1/8"), B.C. and A.M.A. (8X3), Nova Scotia Std (5 X 3 1/4")1 1/2" male threads: NHT and NPSH (SIPT)Height - 4 3/8"