Hydraulic square tube jack leg. Self contained Hydraulic power unit to operate the jack. Ideal for use with commercial, construction and horse/livestock trailers. Support capacity, 12,000 lbs. Self contained hydraulic pump unit to operate jack, 500W 12V DC motor, double acting, 2.5 quarts usable volume reservoir, 3000 psi extension, 1500 psi retraction working pressure. 59" extended height, 34.8" retracted height, 24.2 travel distance. Pivoting large foot pad works well on uneven surfaces. Two 7.5" x 4" mounting brackets for easy bolt-on application. Includes control switch/remote ...