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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 FE850 DCA Backflow Preventer 1" FPT | FE850-100
    Febco FE850 DCA Backflow Preventer 1 in. FPT | FE850-100
    1 Star & Up
    On-Sale $215.95 List Price $367.95
    HLSG SKU: FEB850010
    SKU: FE850-100
  2. Wilkins 350FT DCA Backflow Preventer with SAE Male Test Cocks 1" FPT | WK350FT-100
    Wilkins 350FT DCA Backflow Preventer with SAE Male Test Cocks 1 in. FPT | WK350FT-100
    On-Sale $219.75 List Price $461.95
    HLSG SKU: WLK350FT010
    SKU: WK350FT-100
  3. Febco FE850 DCA Backflow Preventer 3/4" Union End Ball Valves | FE850-075
    Febco FE850 DCA Backflow Preventer 3/4 in. | FE850-075
    1 Star & Up
    On-Sale $205.65 List Price $333.95
    HLSG SKU: FEB850007
    SKU: FE850-075
  4. 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 $451.35 List Price $632.95
    HLSG SKU: CNP4A107A2F
    SKU: CDC4A-107-A2F
  5. 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 $194.15 List Price $534.95
    HLSG SKU: CNP4A105A2F
    SKU: CDC4A-105-A2F
  6. 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 $588.95 List Price $715.95
    SKU: CDC4A-108-A2F
  7. Febco U850 DCA Backflow Preventer 1" Union End Ball Valves | FEU850-100
    Febco U850 DCA Backflow Preventer 1 in. Union End Ball Valves | FEU850-100
    1 Star & Up
    On-Sale $302.25 List Price $490.95
    SKU: FEU850-100
  8. 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 $143.95 List Price $211.95
    HLSG SKU: CNP4A104A2F
    SKU: CDC4A-104-A2F
  9. Febco FE850 DCA Backflow Preventer 1-1/2" FPT | FE850-150
    Febco FE850 DCA Backflow Preventer 1-1/2 in. FPT | FE850-150
    On-Sale $684.45 List Price $1,111.95
    HLSG SKU: FEB850015
    SKU: FE850-150
  10. Febco FE850 DCA Backflow Preventer 1-1/4" FPT | FE850-125
    Febco FE850 DCA Backflow Preventer 1-1/4 in. FPT | FE850-125
    On-Sale $564.75 List Price $916.95
    SKU: FE850-125
  11. Febco U850 DCA Backflow Preventer 3/4" Union End Ball Valves | FEU850-075
    Febco U850 DCA Backflow Preventer 3/4 in. Union End Ball Valves | FEU850-075
    On-Sale $295.95 List Price $480.95
    SKU: FEU850-075
  12. Febco FE850 DCA Backflow Preventer 2" FPT | FE850-200
    Febco FE850 DCA Backflow Preventer 2 in. FPT | FE850-200
    1 Star & Up
    On-Sale $816.75 List Price $1,325.95
    HLSG SKU: FEB850020
    SKU: FE850-200
  13. Wilkins 350FT DCA Backflow Preventer with SAE Male Test Cocks 1-1/2" FPT | WK350FT-150
    Wilkins 350FT DCA Backflow Preventer with SAE Male Test Cocks 1-1/2 in. FPT | WK350FT-150
    On-Sale $597.35 List Price $980.95
    SKU: WK350FT-150
  14. Wilkins 350 DCA Backflow Preventer 1 in. | WK350-100
    Wilkins 350 DCA Backflow Preventer 1 in. | WK350-100
    On-Sale $220.00 List Price $377.14
    HLSG SKU: WLK350010
    SKU: WK350-100
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