Metal-Fab Sure-Seal Direct Vent 5" x 6" - 11" Adjustable Wall Thimble watt780 Four inch diameter for lengthy

Four inch diameter for lengthy installations

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Metal-Fab Sure-Seal Direct Vent 5" x 6" - 11" Adjustable Wall Thimble watt780 Four inch diameter for lengthyDirect vent systems are balanced pressure systems acquiring intake air from outside the dwelling while exhausting combustion gases through the sealed flue. UL 2112 tested and listed, Metal Fab Direct Vent products are designed for safety, strength and reliability, generating a product that lasts a lifetime. Precision design and construction of the 430 stainless steel flue eliminate the need for gaskets and reduce leaks, enhancing product dependability