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Pilot Grove, Missouri | Couldn't find the box extensions on the Shoup website, but according to the catalog they increase capacity "up to 400#". I would highly reccomend some kind of reinforcement under the boxes to keep them from cracking. Had some extensions on mine last year, only used them with urea, and the boxes started to crack at the supports. I cut some flat steel to use run the length of the boxes to spread the load . Patrick | |
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