One-way scupper valves let water drain out of the kayak while preventing water from entering through the scuppers. Short scupper valves fit the Sportsman/Topwater 106, 120, PDL 106, PDL 120, Salty PDL 120, 106 Powered by Minn Kota, AutoPilot 120, and AutoPilot 136. The shorter design allows them to fit flush with the deck of the kayak, eliminating interference with standing, crates, and other cargo. Sold in packs of two valves.