Mr. Heater
3/8-inch Female pipe thread x 3/8-inch Male pipe thread. Often used to connect low pressure appliances to low pressure regulators.
Maxx Air Direct Drive Barrel Fan
Black Stove Pipe Reducer, Small End Crimp, 24-Ga., 7 x 6-In.
Lambro 3-1/4 In. x 10 In. x 24 In. Galvanized 1 Pc. Stack Duct
Lambro 3-1/4 In. x 10 In. Galvanized Flat Elbow
Imperial Snaplock 6 In. x 12 In. 1200 F Black Stove Pipe