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Port length calculator slot port length calculator 8, 34, 1 Transparent Subwoofer Subwoofer Size 8, 10, 12, 15, 18 Number of Cutouts 1, 2, 3, 4 Subwoofer Hole Cutout Size Port slot machines online with bonus games Add 12 the width of the port to the length For example: If the slot port dimensions are 10 tall, 2 wide, and 12 long

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