Watts Automatic Fill Valve for Hot Water Boiler, B911S-M3
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$ 174.99
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$ 583.50
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$ 661.65
$ 24.99
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Product description
- For use in boiler feed lines in hydronic heating systems
- Combination feed water pressure regulator and backflow preventor
- Quick system filling and purging
- All bronze construction
- 1/2 in. union solder inlet x NPT threaded outlet connection
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