RAM MOUNTS Kayak Mount, Lowrance TotalScan Xdcr Review This fits your . Make sure this fits by entering your model number. Kayak Mount, Lowrance TotalScan Xdcr › See more product details Kayak Mount, MFG# RAM-316-18-TRA4U-NB, for Lowrance TotalScan transducer. Used with RAM “C” sizes bases. 18″ length.