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3-1/4 In. X 10 In. Rectangular Stack Duct Starting Collar

10 In. X 3-1/4 In. to 5 In. Stack Boot

3.25 In. X 10 In. X 5 Ft. Half Section Rectangular Stack Duct

Master Flow Stack Boot 10 in. x 3-1/4 in. to 6 in. 90º Durable Galvanized Steel

3-1/4 In. X 10 In. Rectangular Stack Duct Starting Collar

3.25 In. X 10 In. X 3 Ft. Half Section Rectangular Stack Duct