Product Type Ducting Compatible with Product Type Ducting for Portable Oil Kerosene Heaters Compatible Grainger Part Number 6DMP1 Compatible Mfr Model Number AR210 Overall Length 25 ft Overall Diameter 14 in Vent Diameter 14 in Thickness 0.023 in Maximum Operating Temperature 280 Degrees F Material TPE Reinforced Laminate Includes Screw Clamp Cuff on Entry End