Metal-Fab Sure-Seal Direct Vent 4" x 18" Straight Length Pipe d17.25 Airtight damper prevents air drafts

Airtight damper prevents air drafts when not in use

Manual On/Off Operations ONLY

and a stainless steel frame

Home Screen: This is your command center

Electrical junction box included for hook up of optional HFB-B Blower

Metal-Fab Sure-Seal Direct Vent 4" x 18" Straight Length Pipe d17.25 Airtight damper prevents air draftsDirect 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