Duct Clamp For Nominal Duct Diameter 17 in Product Type Duct Clamp Material Thickness 18 ga Material Steel Overall Length 17 in Inside Diameter 17 in Seal Material Nitrile Weight 1.67 lb Shape Round Standards Not Applicable Outside Diameter 17 in Finish Galvanized Compatible with Series QF Compatible with Brand Nordfab Series QF Maximum Temperature Rating 158 Degrees F