Product Description

Sometimes you need to extend a gas insert flex vent system – these extensions are designed to do that.  Whether is damage to the existing liner, or extending the chimney – these gas venting flex extensions are engineered for gas insert fireplaces venting.

These are high quality aluminum venting liner extensions for either 3″ or 4″ inside diameter.

Product Includes

• 10′ Liner Extension
• Either 3″ or 4″ inside diameter
• Rated for gas fireplaces, gas inserts and gas stoves

You may require ‘2’ if your fireplace or stove is using ‘2’ liners.  These liners can be cut down to size with standard cutters.

If your part is not listed on our website, please contact us and we would be happy to help try and source it!

These high quality gas venting liner extensions are in stock and ready to ship.