Amazon.com: RAM MOUNTS (RAM-B-316-18-TRA1-NB Transducer Arm Mount with 18" Rigid Aluminum Rod and Open Single Socket: Compatible with All 1" Ball Base : Electronics
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RAM MOUNTS RAM Transducer Mount with 18" Rod RAM-316-18-TRA4U-NB
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RAM Mount Transducer Arm Mount w/18" Rigid Aluminum Rod & Open Single Socket f/Lowrance StructureScan LSS1 & LSS2 [RAM-B-316-18-TRA3-NB]