Master Flow Fresh Air Vents come with a built-in screen to prevent bird entry. They can be used to vent a combustion system or anywhere fresh air intake is needed. Constructed of galvanized steel.
Built-in bird screen
Sturdy galvanized steel construction
Always seal seams with building code approved sealant or duct tape
Install with sheet metal screws
Built-in screen to prevent bird entry
Maximum temperature rating of 390 degree F， minimum temperature rating of -100 degree F
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