Resideo NK300S-100 Combination Boiler Feed Valve with Sweat and Threaded Connections ELSTR-N With its reliable features and

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Resideo NK300S-100 Combination Boiler Feed Valve with Sweat and Threaded Connections ELSTR-N With its reliable features andResideo NK300S 100 Combination Boiler Feed Valve with Sweat and Threaded Connections 1 2" NPT+SWEAT The NK300S Boiler Feed Combination Valve combines a testable back flow preventer with a pressure reducing boiler fill valve. This feature rich product contains a strainer, pressure gauge, two shutoff ball valves, and test ports to save you time and money. Its exactly what every residential, light commercial or multi family building with a boiler needs