The RAM-202-153-202U consists of a round 2.5" diameter round base (Universal AMPs Hole Pattern) double socket arm and 1.5" x 3" rectangular base. The rectangular base contains four holes with a center to center pattern of 1" x 2.5". For most applications mount will support up to ten pounds.
RAM Mount with 2.5" Round Base for Humminbird Helix 5 (RAM-202-153-202U)
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