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(OLD OBSOLETE) Kingroon KP3S Twin Duct - see newer version!

This is still a work in progress, but a few folk on the forums have asked me for the .STL so here it is. Of the single duct version and this version I prefer the single duct as I'm seeing better results with it. So please do treat this twin version as an "experimental prototype" Perhaps you may improve on this and if you do, I would love to see your results :-)

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