WirthCo Funnel King 1 inch Thread 3 Quart Polyethylene Drum Funnel is designed to allow the funnel to securely fit to a standard drum with 1 inch threading. This funnel makes it easy to fill large drums and barrels with liquids and granular products like fuel, chemicals, detergents and solvents. It has an overall height of 9-3/16 inches and a top inner diameter of 7-1/2 inches. The spout is 1-7/16 inches long and has an outer diameter of 2-1/4 inches. The maximum temperature that this funnel can withstand is 250 degrees Fahrenheit. For over 30 years, WirthCo has been a prime manufacturer of practical products for making life easier and safer. California Prop 65 - Warning, This product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.