The 2,700-lb. Model RD6536 skid-steer pump attachment features a universal design compatible with any skid steer. The 3-in. hydraulic squeeze pump is suited for ICF, block fill, form and pour, driveways, basements and various shotcrete applications. It is able to pump 3/8-in. aggregate shotcrete and 3/4-in. aggregate concrete mixes. A hydraulic agitator is included in the receiving hopper to keep the mix well blended. The unit offers variable speed from 0 to 25 cu. yds. per hour. Vertical pumping distance reaches 50 ft. with the use of a rubber delivery line, while horizontal distance can reach up to 250 ft.