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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. Conbraco 4A-100 DCA Backflow Preventer 1" FPT | CDC4A-105-A2F
    Conbraco 4A-100 DCA Backflow Preventer 1 in. FPT | CDC4A-105-A2F
    On-Sale $161.95 List Price $509.25
    SKU: CDC4A-105-A2F
  2. Conbraco 4A-100 DCA Backflow Preventer 3/4" FPT | CDC4A-104-A2F
    Conbraco 4A-100 DCA Backflow Preventer 3/4 in. FPT | CDC4A-104-A2F
    On-Sale $138.95 List Price $201.60
    SKU: CDC4A-104-A2F
  3. Conbraco 4A-100 DCA Backflow Preventer 1-1/2" FPT | CDC4A-107-A2F
    Conbraco 4A-100 DCA Backflow Preventer 1-1/2 in. FPT | CDC4A-107-A2F
    On-Sale $316.95 List Price $602.70
    SKU: CDC4A-107-A2F
  4. Conbraco 4A-100 DCA Backflow Preventer 2" FPT | CDC4A-108-A2F
    Conbraco 4A-100 DCA Backflow Preventer 2 in. FPT | CDC4A-108-A2F
    On-Sale $408.95 List Price $681.45
    SKU: CDC4A-108-A2F
  5. Wilkins 350BOF DCA with Blow Out Flush Fitting 1-1/2" FPT | WK350BOF-150
    Wilkins 350BOF DCA with Blow Out Flush Fitting 1-1/2 in. FPT | WK350BOF-150
    On-Sale $768.55 List Price $999.60
    SKU: WK350BOF-150
  6. Wilkins 350BOF DCA with Blow Out Flush Fitting 2" FPT | WK350BOF-200
    Wilkins 350BOF DCA with Blow Out Flush Fitting 2 in. FPT | WK350BOF-200
    On-Sale $884.65 List Price $1,149.75
    SKU: WK350BOF-200
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