NK300S-1/2A Standard version with 1/2 in threaded connections
SKU: NK300S-1/2A


NK300S-1/2A Standard version with 1/2 in threaded connections
SKU: NK300S-1/2A
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. It’s exactly what every residential, light commercial or multi-family building with a boiler needs to speed up installation, checkout, and maintenance visits.
Product overview
- Multiple solutions integrated into one product provides savings on installation time and material costs
- Test ports located on the inlet, middle, and outlet chambers of the double check backflow preventer
- Fast fill technology with inlet pressure balancing
- Removable and replaceable cartridges for easy service and/or cleaning
- ntegrated strainer to protect equipment from particles and sediment
- ASSE 1081 approved