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Double Check Assemblies (DCA)


Double check valve assemblies (DCVA) are the most commonly approved type of device for inline underground sprinkler systems and a good choice for interior or underground installations. These backflow preventers are less susceptible to frost damage because they are usually installed below ground or in a basement making sprinkler system winterization much simpler.

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  1. Febco LF850 Lead Free DCA Backflow Preventer 4" NRS Gate Valves | LF850-400-NRS
    Febco LF850 Lead Free DCA Backflow Preventer 4 in. NRS Gate Valves | LF850-400-NRS
    On-Sale $2,778.98 List Price $4,021.29
    SKU: LF850-400-NRS
    Out of stock
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