Bulkhead Tank Fittings | Socket Weld x Threaded | Sweat | Threaded x Threaded | Threaded | 1-1/2" x 1-1/2" | 1-1/2" | 1-1/4" x 1-1/4" | 1-1/4" x 1-1/4" x 1" | 2-1/2" | 2" x 1" | 3" x 1-1/2"