By combining windrows, you reduce labor, fuel and wheel traffic for a lower cost per
ton. Both the 9-foot H5420 and the 12-foot H5430 can merge up to 12 feet and require
a 70-hp tractor. Three extension lengths are available to expand the merge area -
a two-foot extension to merge 14 feet, a 4-foot extension to merge 16 feet, or a 6-foot
extension to merge 18 feet.