Allows fresh air for combustion to come through the wall without having to cut a secondary hole into the wall. Used when passing horizontally through a combustible wall, this wall pass-thru is adjustable from 4" to 9" for a variety of wall thicknesses. Exterior galvalume cover plate included, fresh air pipe not included.
•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
AØ : 5.7"
BØ : 2.9"
C : 4"
D : 10"
E : 9"
F : 11"
G : 8"
YY : 4"-9"