VERTICAL HYDRAULIC RESERVOIR TANKS STORE EXCESS HYDRAULIC FLUID WHEN THE FLUID NOT BEING USED BY THE SYSTEM AND CAN BE USED TO COOL AND FILTER THE FLUID A REMOVABLE LID CAN BE MACHINED FOR MOUNTING SYSTEM COMPONENTS AND THE FLAT BOTTOM CAN BE USED TO MOUNT THE RESERVOIR THE TANK IS CONSTRUCTED OF STEEL WHICH IS NONPOROUS AND RESISTS DAMAGE MAKING IT SUITABLE FOR USE IN DEMANDING ENVIRONMENTS RESERVOIR TANKS INCLUDE A BREATHER CAP LIQUID LEVEL GAUGE DRAIN PORT AND THERMOMETERSTEEL HYDRAULIC RESER