Pyrex Pyrex 4980-500CNpk 500 ML Narrow Mouth s With Heavy Duty R ( Pack Of 6 Erlenmeyer Flask Texas Residents: Under Texas State Law, this product requires a Precursor Chemical/Laboratory Apparatus NAR-120 permit to ship to a Texas address. Pyrex 4980 Narrow Mouth Erlenmeyer Glass Flask 125 ml 4-1/2" Tall Failure to provide a valid permit will result in a cancellation and refund of your order., Capacity is 500mL Capacity: 500mL; height: 176mm; outer diameter: 101mmMade from borosilicate glass code 7740Narrow mouthed Erlenmeyer flask uses rubber stopper number 7Graduated from 100 to 500mL in 50mL intervalsReusable and non sterile with an extra large marking space provided These 500mL PYREX® Erlenmeyer flasks are designed with heavy duty rims to reduce chipping. Their uniform wall thickness provides... Their uniform wall thickness provides the proper balance between mechanical strength and thermal shock resistance. Lab Erlenmeyer Flasks - Pyrex / Lab Erlenmeyer Flasks / Lab Flasks Outer diameter is approximately 101 mm