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| IH offered an air defused that went into the seed delivery tube just above the seed tube that allow air to escape the delivery tube helping eliminate some of the seed bounce. I had a 6x36" 400 that I installed 2 defused per row. Along with using a low air pressure just enough to hold the seed in the drum holes, the defused pretty much eliminated any seed bounce. The defusers created a distinctive sound, like a low whistle, | |
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