ITEM NAME:Water Liquid Flow Measuring Tube Rotameter Flowmeter 0.2-1GPM Grey+ Clear Description: ABS material, good sealing. This instrument measures the rate of flow of oil or water. Its measurement lines are printed onto the glass exterior, making it easy to read and derive an accurate measurement. The straight tube style easily connects to the liquid tube with two end threads. It measures 1.0 inches in diameter and is 7.28 inches tall. Specification: Material: ABS material LZM-Y flowmeter size: length 185mm / 7.28inch; diameter 25mm / 0.98inch Measuring range: 0.2-1GPM Package Includes: 1 Piece Rotameter.The straight tube style easily connects to the liquid tube with two end threads. People always bought together with.