Two materials available: HDPE and fluorinated HDPE. High density polyethylene provides long term chemical resistance. Fluorinated HDPE provides improved barrier protection, and reduces solvent absorption and penetration. Excellent for use with most acids, alkalis and organic solvents. All models have recessed bottoms for easy gripping when pouring. Graduated in both liters and gallons. Rugged design features a low center of gravity. Complete with strap-fastened, 53mm polypropylene screw closure.