Air Intake
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 | Wall inlet cap, 4” O.D. with bird screen. For use with outside air option. Bird screen ensures open air flow to unit. Used for 0-20’ of 4” intake. Used on all low intensity tube heaters | |
 | 4" Flexible Air Inlet Hose Used on all low intensity tube heaters 4" flexible air inlet rubber hose (black) with DWV adapter affixed to AIRH. Mates to 4" DWV pipe. Replaces AIB 18" in length.
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 | 4" Rooftop Vent Package. Can also be used for Air Intake. |