Hayward | Insert Barb x Insert Barb | Socket Weld x MIP | Socket Weld x Threaded | Sweat x FIP | Sweat x MIP | Threaded x Threaded | Threaded | 1-1/2" | 1/2" x 3/4" | 1" x 3 | 2-1/2"-2" x | 3/4" x 1/2"