Brand Name: Imperial
*End 1 Diameter: 3 in.
*End 2 Diameter: 4 in.
*Material: Galvanized Steel
*Product Type: Stove Pipe Increaser
*End Type: Crimp on Large End
*Color: Gray
*Vent Type: Type A
*Packaging Type: Carton
*Weight Capacity: Other
*Gauge: 24 Ga.