Resideo - Honeywell Home 50043683-001 Humidifier Water Backflow Prevention ValveHumidifier Water Backflow Prevention Valve is a critical Resideo Honeywell Home accessory that protects your home while running a bypass humidifier. This valve is designed specifically for use with bypass humidifiers and works with HM509 HM512 Truesteam models to prevent reverse water flow, guarding your equipment and interior spaces from leaks and humidity spikes. Engineered for dependable, quiet operation, the valve includes a manual water shut off

a TrueZONE Damper

It ships with a Type 6 Foot 7-1/5 Inch Cable and includes an A99BB-200C Temperature Sensor plus an Off-Cycle Defrost Timer for smooth defrost scheduling

while the CW and CV configurations provide versatile mounting options

while the assembly supports easy disassembly for future service

Replaces 1172775 and 1186447

The premium gasket material withstands fluctuating temperatures and humidity to ensure long-lasting performance in residential heating and cooling setups

This essential flame sensor helps monitor flame presence to ensure safe ignition

the Armstrong 10B96 relay delivers consistent performance with minimal maintenance

and panel wiring

this kit guards internal components from dust

maintenance-free operation in demanding environments

the valve supports efficient system startup