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About In-Line Draft Blockers

 
 

In-Line Draft Blockers

Specifically designed to stop backdrafts from your clothes dryer, bathroom exhaust fan, kitchen fan, pellet stove, direct vent water heater and direct vent furnace. Tested to UL723 standard for flame resistance.
Bathroom Fan Draft Blocker
Fits Any Bath Fan Standard 4" Duct!


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15550 - Breechings, Chimneys and Stack
15820 - Duct Accessories
23 33 00 - Air Duct Accessories
23 51 00 - Breechings, Chimneys, and Stacks
23 51 13 - Draft Control Devices
23 51 16 - Fabricated Breechings and Accessories
23 51 19 - Fabricated Stacks
23 51 23 - Gas Vents
23 51 33 - Insulated Sectional Chimneys