Speedi-Products SM-RH3107 SB 3.25-Inch W by 10-Inch Length to 7-Inch Stack Range Hood Straight Boot
Straight Boot style * Galvanized 30 Gauge Sheet Metal * 3 25-Inch x 10-Inch with crimped 7-Inch diameter pipe collar connection * Seal joints with approved duct mastic sealants * Consult your local building codes for approved installation practices