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convert round port to slot port
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<blockquote data-quote="John Pionke" data-source="post: 7283321" data-attributes="member: 586350"><p>You need to match the area. To find the area of a circle, you use the formula pi*r^2. r=radius (half the diameter of the circle). There are online calculators if you need some help.</p><p></p><p>Once you have the area of the circle, you just create a slot that matches that area and keep the length the same. Ex. Area of tube port(s) is 36". Your box is 18" tall. 36/18=2. Your slot port will be 2" x 18".</p></blockquote><p></p>
[QUOTE="John Pionke, post: 7283321, member: 586350"] You need to match the area. To find the area of a circle, you use the formula pi*r^2. r=radius (half the diameter of the circle). There are online calculators if you need some help. Once you have the area of the circle, you just create a slot that matches that area and keep the length the same. Ex. Area of tube port(s) is 36". Your box is 18" tall. 36/18=2. Your slot port will be 2" x 18". [/QUOTE]
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convert round port to slot port
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