SCHOTT DURAN Red Line Gage Glasses, 150 °F, 165 psig, 5 8 in dia, 48 in L ORS NASCO Nearly 50% lighter than comparable Nearly 50% lighter than comparable cast iron models of the same size Features a jaw opening parallel to the handle Narrow hook jaw head provides easy entry into tight spots vinyl and more Formula is not xylene based Valve actuated mechanism prevents paint in barrel from drying when cap is left off Heavy duty aluminum body with large paint capacity Ideal for color coding making it easier to read liquid level Redline tubular gage glass is widely used in tanks Magnifies the red line present between two white lines when in the presence of a colorless liquid