This unit is specially designed for the strawberry industry, mulches to a depth of 15.5 inches and gives you a full mixing of the soil reducing the majority of the salinity in the soil. Northwest has been developing this unit over the last 4 years and our goal is to eliminate up to ten passes from your regular farming practice. Built strong for a long-term life expectancy of 15-20 years and boasts a documented savings of up to $600.00/acre and increase in production of 12-15%. ROI for this unit is less than 100 acres.