Double Check Backflow Preventers
Available109 products
Double-check backflow preventers protect water supplies from contamination due to backpressure or backsiphoning. Also called double check valve assemblies, they have two independent check valves for easy inline maintenance. These backflow preventers are not suited for high health-hazard applications.
Lead-Free Double Check Backflow Preventers for Potable Water
Lead-free double-check backflow preventers protect potable water supplies from contamination. They install in applications that require downstream contact with a potable water system.
APOLLO 4ALF-100
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ZURN WILKINS 350XL
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ZURN WILKINS 950XL3
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ZURN WILKINS 950XLT2
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WATTS LF719
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WATTS LF709
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WATTS LF007
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WATTS REGULATOR LF007
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Double Check Backflow Preventers for Non-Potable Water
Double-check backflow preventers are suitable for applications with non-potable water, such as irrigation and industrial or recycled water service.
APOLLO 4A-100
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ZURN WILKINS 350
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ZURN WILKINS 950XL
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ZURN WILKINS 950XLT
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WATTS 774
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WATTS 757
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WATTS 007
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Fire Protection & Sprinkler System Double Check Backflow Preventers
Fire sprinkler system double-check backflow preventers install in fire protection and sprinkler systems to keep polluted water out of water supply systems.
ZURN WILKINS 950XLT
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WATTS 774
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WATTS 709
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WATTS 007
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