Rock-Vent Storm Collar Size:8 in. Our models are sized by

Our models are sized by common flue tiles and available in 6 Sizes:

The Flat Plate can be trimmed down with a good pair of tin snips

and Rockford chimney liner supply offers you this quality product

Now you can adapt pipes of many different sizes with this little handy guy

Rock-Vent Storm Collar Size:8 in. Our models are sized byThe Rock Vent Storm Collar is made to fit the exact dimension of the pipe. Constructed of 304L stainless steel. Use to seal the inner edge that contacts the chimney pipe with silicone sealant. A storm collar is always included with our Flashings or Attic Insulation Shields (may be made of a different steel in those kits). Keep in mind, the sizes listed are always the inside diameter pipe size. Ex: The 8" storm collar will fit our 8" Rock Vent