Hopper Bottom Grain Trailers built to last.  Call Integrity Sales and Services for a quote today at 260-238-5000.  You can order the Original Agri-Traders Hopper Trailer design or our new Integrity MFG model.  We are here to serve you! Hopper Bottom Grain Trailers built by farmers for farmers, Amish craftsmanship in each and every grain trailer manufactured!