Min./Max. Height: 185/325mm.Air assisted or manual operation. Safety overload valve.All steel, one-piece extra thick base, reservoir and pump cylinder.Telescopic pump handle.90° Rotating pump.Serviceable ram piston with extension screw.Service kit available.3 Year Guarantee*.Model No. AM20SLEDUAL CONTROL - Air/Hydraulic bottle jack capable of both air assisted or manual operation. SAFETY VALVE - Fitted with safety overload valve and manufactured in the EU.EXTRA THICK BASE - All steel, one-piece base, reservoir and pump cylinder design gives added strength and stops distortion under load.CONVENIENT HANDLE - Telescopic pump handle for easy storage. Allows use when an air supplier is unavailable.EASY POSITIONING - Rotating pump and low initial height makes this jack easy to locate under any low profile vehicle>Great for Bus and Coach Work.SERVICEABLE RAM - Fully serviceable ram piston with extension screw. Service kit readily available.3 YEAR GUARANTEE*.