Summers Manufacturing Co., Inc P.O.Box 580 , Devils Lake , North Dakota 58301 USA About Solutions products Publications videos Downloads Companies Summers Manufacturing Co., Inc Videos VRT2530 - Variable Rate Tillage - Video VRT2530 - Variable Rate Tillage - Video 0 Share VRT2530 - Variable Rate Application is the newest product introduced to the Summers tillage line. With the VRT you can adjust tillage aggressiveness on the go! Customer comments No comments were found for VRT2530 - Variable Rate Tillage - Video. Be the first to comment! Add your comment Publish your comment Great! comment successfully added!