Kayak Plugs Wilderness Systems Scupper Stoppers Harmony Plugs Perception Kayak 4 Pack The Wilderness Systems Scupper Stopper fit all Wilderness Systems sit-on-top kayaks including all the Tarpon models and all the Ride models from 2007 until now. These plugs will fit other sit-on-top kayaks with a scupper hole of 1" - 1-3/8". Sold in a package of 4, bulk Store in USA , Arrive 5-14 days