Norco Floor Jack with an air-operated hydraulic design and 20-ton capacity features a lift height from 11-5/16" to 28-11/16". Designed for heavy-duty trucks, as well as agricultural and heavy construction equipment, this jack is ideal for roadside service calls for loaded trucks and trailers. This unit's fast and efficient air pump reduces lifting time with a built-in relief mechanism to prevent the jack from being used beyond its rated capacity, and a convenient push-button air valve, connected to an in-line filter, prohibits contaminates from entering the air/hydraulic system. The jack's removable extension screw is used with the two included 4" extension adapters for added height when necessary, and a self-retracting ram eliminates manual lowering of the jack, with a rust-inhibitive coating on the ram, extension screw, and extension adapters. This unit also includes a long handle, removable for shipment or storage, with a 45-1/2" reach to help position the jack under vehicles with a low overhang, and the handle's hand grip also works as a stand to store the jack in a vertical position. The 5"-diameter, high-impact composite wheels make maneuverability easy, and the jack's compact design fits easily between tandem wheels. Model 72090 pictured with same basic construction. Norco charges a limited access fee for shipments to military bases, schools, churchs, and all other gated areas, as well as charging a substantial fee for re-delivery of order, lift gate use, and residential delivery. Also, local sales taxes will be applied to ALL Norco orders shipped to California.