The Fish Finder Mounts Down Rigger Adapter Plate with Pontoon Rail Clamp comes with your choice of of a Square Rail Clamp (fits 7/8" to 1.5" square rails) or a Round Rail Clamp (fits 7/8" and 1" diameter rails.)
Fits Scotty, Cannon and Seahorse Troll-Master downriggers.
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Downrigger Adapter Plate with Rail Clamp
$178.85Price