"This Wolo Turbo compressor and tank system is designed for use with Siberian Express and Philly Express air horns Item#s 700528, 700529 and 700530 or any high-pressure horns requiring an onboard air system. It provides special extended 5.5L tank and a heavy-duty, high-volume compressor to provide the power needed to operate powerful horns. Dimensions L x W x H in. 6 1/4 x 5 x 18 compressor, Product Style Compressor and tank system. Balanced compressor includes heavy rubber bushings in mounting base to virtually eliminate vibration Tank features built-in pressure regulator to maintain 110 PSI Simple setup includes tank, compressor, 10 feet of 1/4in air hose, fittings and all mounting hardware"