YakGear Universal Scupper Plug Kit [SCUP4]Universal Scupper Plug Kit Solve the problem of unknown sizes of lost scupper plugs with the YakGear Universal Scupper Plug Kit. Scupper plugs act as a sealant to the self bailing scupper holes to keep extra water out of the cockpit of your sit on top kayak. These plugs fit any scupper hole with a circumference ranging from 3 4 inch to 1 1 2 inch. Orders will be in increments of 4 pieces. Features: Universal scupper plugs fit any scupper hole ranging