Brand Name: Selkirk
*Diameter: 4 in.
*Length: 18 in.
*Material: Aluminum
*Product Type: Round Gas Vent Pipe
*Packaging Type: Boxed
*Chimney Vent Type: Type B
*Indoor or Outdoor: Indoor
*Color: Silver
*Maximum Temperature: 500 deg. F
*Number: 4RV-18