windline-bracket-dive-ladderThe DLB 3 has a 4 hole pattern. From the edge of the DLB 3 to the center of each hole, it's 1 2". From the center of one hole going left to right to the center of the second hole, it's 1. 85". From the center of the hole to the center of the hole going up and down, it's 3 1 4".
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