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18" long extension pipe for 4" Z-Flex rain caps. Used to elevate the rain cap above the standard chimney top level where required by code or for improved draft.
Features:
Features:
- Extends rain cap length by 18" from the liner
- Reduces the impact of wind-induced downdrafts
- Made from tough 304 Stainless Steel for enhanced corrosion resistance and harsh weather conditions
- For use in natural draft application only