Alloy and Special Pipe Nipples | Socket Weld x Threaded | Threaded | 1-1/2" x 1-1/4" | 1/2" | 2" | 3-1/2" - 3" x 1" | 3/4" x 3/4" x 1/4" | 3/8"-5/16"-18 | 5" x 3" | 20 ounce | 9.1" x 16.8"