Big lifting power in a compact package! In-line bottle jacks are a powerful, economical solution for everyday lifting applications. The patented pumping system eliminates off-center pumping force to deliver the most efficient operation, so it takes the least amount of pressure possible to lift the load. An extra-large base provides added stability and strength, and the ridged, heat-treated saddle provides a generous lifting area and a secure grip. The heat-treated extension screw allows a low pick-up height adjustment and maximum lift height. A patented, built-in by-pass device protects the hydraulic system from over-pumping, and a unique cross-type, forged release valve ensures positive control during lifting applications. Critical stress points are reinforced for added durability and dependability. Manufacturer's 1-year warranty included.