The I-4131 combines two rows of concave disc blades split by two rows of coulters on the same frame to make for more aggressive tillage than wave coulters alone. This unit is equipped with Cat 4 articulating hitch, a hydraulic telescope with cushion, complete weight kit, hydraulic 3 bar 1/2" coil tines and manual single roller. Operating depth range 0 - 5". HP required between 350 and 410.