CoolGuard® FS3 Drain Pan Float Switch, 24VAC Condensate Overflow Safety Switch for HVAC Systems 9K + 24K With reliable performance down to

With reliable performance down to 5°F outdoor temperature

or EPA licensing

000 BTU model delivers

but the 5th Gen DIY is the performance champion

CoolGuard® FS3 Drain Pan Float Switch, 24VAC Condensate Overflow Safety Switch for HVAC Systems 9K + 24K With reliable performance down toProduct Description CoolGuard FS3 Drain Pan Float Switch Protect Your HVAC System from Costly Water Damage Water damage caused by clogged condensate drains can quickly lead to expensive repairs, ceiling damage, mold growth, and HVAC system failures. The CoolGuard FS3 Drain Pan Float Switch provides dependable overflow protection by automatically shutting down your heating and cooling equipment before condensate can overflow from the drain pan.