Closed System Oiler, Reservoir Cap. (Oz.) 4 oz, Height (In.) 7 13/16 in, Width (In.) 2 11/16 in, Thread Size -, Bowl Dia. 2 11/16 in, Glass, Capacity 4 fl oz, Function Maintains Constant Level Of Oil And Prevents Accidental Overfilling, For Use With -, Includes 2 in Sight Gauge, Side and Bottom Connections, Spout Length (In.) -