Product Type Ducting, Compatible with Product Type Direct-Fired Portable Gas Torpedo Heaters, Compatible Grainger Part Number 5PFW4, Compatible Mfr. Model Number VG175, Overall Diameter 8 in, Overall Length 25 ft, Thickness 1/16 in, Material Canvas, Ducting Type Ducting, Includes High Temperature Material. This item has been restricted from sale in the following state (s): []