Robertshaw 720-400 Gas Valve Model #FFTR1835VW Adjustable Differential

Adjustable Differential

Sanitizes wells and natural springs by destroying organic contaminants

The First Alert BRK PRC700 battery-operated smoke and carbon monoxide alarm features a photoelectric smoke sensor and an electrochemical carbon monoxide sensor

Product does not contain mercury

Easy-slide mounting bracket makes ceiling or wall installations a breeze

Robertshaw 720-400 Gas Valve Model #FFTR1835VW Adjustable DifferentialThe 720 Series Dual Valve Gas Controls are designed for a wide variety of heating applications and can be used to replace most constant pilot valves, including dual valve (six function) models. The 720 Series constant pilot gas valve is a six function valve incorporating a manual valve, safety shutoff magnet, dual automatic valves (hence the term "dual valves"), main gas regulator, and pilot adjustment. Models are available with and without a pressure