4in x 1-1/2in | Couplings | Hex Reducer Bushings | Rubber Cap | Threaded | 1-1/2" | 1-1/4" x 1" | 1" x 3/4" | 1" x 3/8" | 2-1/2" x 1-1/2" | 2" x 1/2" | 4" x 1-1/2" | 4" x 2"