NK300S 4.4 Gallon Boiler Trim Kit 1" NPT

The NK300S-100 Boiler Feed Combination Valve reduces installation costs and saves time in boiler applications by combining multiple devices into one product that fits into a smaller footprint. This product contains an integrated pressure reducing valve, double check backflow preventer with air vent, two shut-off ball valves, pressure gauge, and conveniently located test ports for easy inspection and check out. 

Includes:

• TK300-30 Expansion Tank
• PV100 Automatic Air Vent (1" NPT)
• SCV-050 Service Check Valve
• NK300S-100 - Boiler Feed Combination Valve