Hearth & Home 3-20-6866 Differential Switch Type_Spa Elixir keeping your pool water consistently

keeping your pool water consistently balanced

With Arc you can create epic pizza

not just the shape

the essential tool for mastering the art of outdoor griddling

and two lids

Hearth & Home 3-20-6866 Differential Switch Type_Spa Elixir keeping your pool water consistentlyHearth & Home 3 20 6866 Differential Switch Overview The Hearth & Home Differential Switch (Part Number 3 20 6866) is a crucial pressure sensitive component used in select pellet and gas stove models to monitor and regulate proper airflow and exhaust operation. This OEM part ensures that the combustion and venting systems are functioning safely by detecting differences in air pressure and enabling ignition only under the correct operating conditions.