PU hose 1.SGS certificate 2.Various sizes,like 1/4",3/ ... -toxic, pressure resistant, abrasion resistant and corrosion resistantFunctionused in central vacuum cleaners,garden,medical. Protect wires or cables .OEM OrderDifferent sizes ... and colors are available.It also can be namedPU Hose, Garden Hose, PUAir Hose, air hose,PU pipe, eva tube, eva tubing.PU Coil ...