SELKIRK 104800 Gas Vent Type B, 4"cap

• Gas Vent Type B, 4 In cap
• Brick-Red Color | Nonflammable | Provides A Fireproof Acoustic Seal
• This is manufactured in Mexico
• Top round
• For gravity draft venting of LP or natural gas burning appliances
• Not for wall furnaces or wood burning applications
• Inner wall aluminum, outer wall galvanized