The Lowrance® Transducer Kayak Scupper Mount is the ultimate transducer mounting system for the sit-on-top fishing kayak. Perfect for all HDS®, Elite™, Mark™ and X-Series Lowrance Skimmer® transducers, both 83/200 kHz and 455/800 kHz DownScan Imaging™ (DSI) models, as well as earlier 1-inch 200 kHz transducers. Installation is easy using almost any scupper opening without messy adhesives. The Lowrance Scupper Mount positions the Skimmer transducer so it is totally submerged in the water, ensuring maximum sonar signal return sensitivity and producing the absolute clearest possible underwater returns of structure and fish. Transducer not included.