Easy Home Enhancements That Your Technician Can Add on the Spot Today! AC-33 Air Conditioning Electronics Package Complete your system with essential electronics for optimal AC performance. AC-36 Surge Protection for Furnace/AC Safeguard your HVAC system against power surges for reliable performance. AC-40 Secondary Cut-Off Switch Enhance safety by cutting off power during HVAC malfunctions. Bio CleanKeep your drains clean and flowing smoothly with this eco-friendly solution.CO DetectorKeep your family safe from carbon monoxide with a reliable detector.Flood Buzz Leak DetectorProtect your home from water damage with an early warning system.GFCI Wall Outlet with LED Night LightAdd safety and convenience to your home with energy-efficient night lights.Panel Whole House Surge ProtectionProtect all your electronics from power surges with whole-house surge protection.USB Charging ReceptacleNever search for a charger again! Convenient USB outlets wherever you need them.Sprinkler Covers Protect your outdoor plumbing with insulated, waterproof sprinkler covers.