20 Ton Super Duty Air/Hydraulic Bottle Jack Welded tank and frame – for stronger performance in rough service conditions and in the case of off-center loading.. 1-1/8” thick base – provides stable lifting platform on poor surfaces.. High-strength steel ram and cylinder supported by a longer ram guide – better safety in off-center load conditions.. Internal release screw – heavy duty internal release screw is protected by base design to avoid accidental release/damage.. Proven air motor – quality tested and field tested to ensure consistent, reliable operation. Can be operated by either air or manually; handle included; hose swivels for ease of operation; ASME / PASE 2014 compliant.. Capacity: 20 Tons Min Height: 10 3/8” Max Height: 20 5/8” Weight: 41.65 Lbs. 5620SD Yes - ETHYLENE GLYCOL (INGESTED)