Swage/Reducing Nipples | MIP Threaded | Threaded | 1-1/2" x 1-1/4" | 1-1/2" X 1/4" | 1/2" x 1/2" x 3/8" | 2-1/2" x 1-1/2" | 2-1/2" x 2" | 2" x 1-1/2" | 3" x 2" | 4" x 1-1/2" | 4" x 3"