Spectra Precision GR153 Grade Rod The Spectra Precision GR153 Grade Rod is a rugged telescopic aluminum grade rod designed for accurate elevation measurements in construction, surveying, and laser leveling applications. Featuring a durable 5-section design, the GR153 extends to 4.7 m and includes metric E-face graduations on the front with reverse-reading graduations on the back for versatile field use. It is also a direct replacement rod for Spectra Precision System Kits . Key Features • Extends to 4.7 m with telescopic 5-section design • Metric E-face front with reverse-reading back graduations • Durable rugged aluminum construction for jobsite use • Replacement rod for Spectra Precision System Kits