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The Rinnai FOT-150 Vnt Kit S 3 to 4-1/2" F/431/556 is used when installing a Rinnai Direct Vent Wall Furnace to vent flue gases to the outdoors through an exterior wall less than 4 1/2 inches thick. This vent termination kit is designed for use with Rinnai EX series direct-vent furnaces.
The Rinnai FOT-150 vent kit is for use with direct vent furnaces. It facilitates the venting of flue gases through walls 3 to 4.5 inches thick.
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