Backflow Direct

Backflow Direct

Rancho Cordova, 美国 中的 回流服务
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At Backflow Direct, we provide high-quality, certified backflow prevention assemblies, pressure-relief valves, ACVs, strainers, and more. We are the …

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常见问题解答

问:
Can the Deringer be installed vertically?
答:
DC and DCDA-II Deringers and only vertical up, not down. RP and RPDA-II Deringers, only horizontally. The top lid and nameplate of the device must...
答:
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