Bottle Jack, Hydraulic, Welded/mechanically fastened Construction, Lifting Capacity (Tons) 20 tons, Lifting Height Min. (In.) 9-1/2 In., Lifting Height Max. (In.) 18-11/16 In., Hydraulic Stroke (In.) 6 In., Extension Screw (In.) 3-1/8 In., YES Saddle, Base Size (In.) 5.94 In.x6.25 In., PALD 2009 (ANSI) StandardsFeaturesItem: Bottle JackType: HydraulicConstruction: Welded/mechanically fastenedStandards: PALD 2009 (ANSI)Saddle: YesBase Size: 5.94" x 6.25"Lifting Capacity: 20 tonsLifting Height Min.: 9-1/2"Lifting Height Max.: 18-11/16"Hydraulic Stroke: 6"Extension Screw: 3-1/8"