Double Wall Increasers and Reducers allow you to adapt to your chimney pipe diameter of choice. We offer a large selection of pipe Increasers and Reducers. Install with male end pointing downward. Compatible with our black stove pipe along with Ventis, Champion, and Nexvent

Measurement Charts:

Double Wall Increaser

Wall Increaser Size	A	B	C	D	YY
5” Male to 6” Female	5”	5.75”	6”	7”	5”
6” Male to 7” Female	6”	6.75”	7”	8”	5”
6” Male to 8” Female	6”	6.75”	8”	9”	5”
7” Male to 8” Female	7”	7.75”	8”	9”	5”

Double Wall Reducer

Wall Reducer Size	A	B	C	D	YY
7” Male to 6” Female	7”	8”	6”	7”	5”
8” Male to 6” Female	8”	9”	6”	8”	5”
8” Male to 7” Female	8”	9”	7”	8”	5”

*Due to many variables beyond our control, the installer should check actual parts for final dimensions.