This SAE 100R4 Wire Inserted Hydraulic Suction Hose is suitable for low pressure and vacuum applications with petroleum base hydraulic fluids or water based hydraulic fluids.Made of preeminent oil resistant synthetic rubber,a ply or plies of woven or braided textile fibers with a suitable spiral of body steel wire reinforcement and oil,weather resistant synthetic rubber cover with black color,wrapped surface.This type of hose can be used for suction lines,return lines. https://www.mdlhose.com/hydrauli...d-hydraulic-suction.html