Royall Supply

Back Flow Valve

Dual check valves with an Intermediate Atmospheric Vent prevent the reverse flow of water from entering into the water supply. Designed for continuous pressure applications in smaller supply lines, and specifically for boiler feed lines.


Back Flow Preventor

Watts Back Flow Preventor 1/2"
Watts Back Flow Preventor 1/2"
BOI71248

Watts Back Flow Preventor 1/2"

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