Pipe Nipples | Socket Weld x MIP | Socket Weld x Threaded | Threaded | 1-1/2" x 1-1/2" x 3/4" | 1-1/2" x 1-1/4" | 1-1/2" x 1/2" | 1" x 3/4" | 2-1/2" x 1-1/4" | 2-1/2" x 2" | 3-1/2" - 3" x 1" | 3" x 2" | 5" - 3" x 1-1/2"