The adapter fits into the masonry wall; the black trim plate is used to cover the hole. The appliance end of the adapter connects directly to the 4" pellet pipe, and the chimney end connects directly to the 6" liner outlet. Includes 4" connector inside masonry adapter.
•Strong and durable venting thanks to its outer wall in galvalume steel and its inner wall in stainless steel
•Revolutionary gasket system that prevents leaks and does not require the use of silicone
•Smooth-weld technology for virtually invisible seams
• Precision formed ends for a better finish
•Complies with NFPA 211, CSA B365, UL 641, CAN/ULC S609 and ULC/ORD C441 standards

Dimensions
A : 4.75"
BØ : 4"
C : 5.9"
D : 9"
E : 8"