This soft rubber scupper plug from YakAttack is designed to fit most shapes and sizes of scuppers available on the market. The flexible body conforms easily, and the ring seals ensure a dry ride every time. Two plugs per pack. Flexible body construction conforms easily to scupper Ring seal ensures dry applications Fits scupper holes ranging from 1.13â to 1.40â diameter | Scupper Plugs, 2-Pack