Resideo NK300S-100 Valve R-407C providing accurate differential pressure sensing

providing accurate differential pressure sensing to prevent rollout or improper combustion

When you're out in the field on a no-heat call

and mounting

making it an ideal solution for applications requiring immediate ignition without delay

which provides the necessary thermal strength and stable electrical properties required for consistent service in demanding environments

Resideo NK300S-100 Valve R-407C providing accurate differential pressure sensingThe Resideo NK300S 100 Valve is a professional grade boiler feed combination valve designed for rapid system commissioning and robust backflow protection in closed loop hydronic heating systems. This high capacity 16 GPM unit integrates a testable double check backflow preventer, an adjustable pressure reducing valve, and dual shut off ball valves into a single brass housing. Built for high demand residential and light commercial applications, the