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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
    80%
    On-Sale $132.98 List Price $280.35
    SKU: FE850-100
  2. Conbraco 4A-100 DCA Backflow Preventer 1" FPT | CDC4A-105-A2F
    Conbraco 4A-100 DCA Backflow Preventer 1 in. FPT | CDC4A-105-A2F
    60%
    On-Sale $161.95 List Price $509.25
    SKU: CDC4A-105-A2F
  3. Febco FE850 DCA Backflow Preventer 3/4" Union End Ball Valves | FE850-075
    Febco FE850 DCA Backflow Preventer 3/4 in. Union End Ball Valves | FE850-075
    80%
    On-Sale $120.98 List Price $248.85
    SKU: FE850-075
  4. 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
    1 Star & Up
    On-Sale $138.95 List Price $201.60
    SKU: CDC4A-104-A2F
  5. 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 $146.95 List Price $439.95
    SKU: WK350FT-100
  6. 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
    80%
    On-Sale $233.98 List Price $327.60
    SKU: FEU850-100
  7. 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
  8. 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 $213.98 List Price $299.25
    SKU: FEU850-075
  9. 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
  10. 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 $401.98 List Price $562.80
    SKU: FE850-150
  11. 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 $414.98 List Price $849.24
    SKU: FE850-125
  12. Febco FE850 DCA Backflow Preventer 2" FPT | FE850-200
    Febco FE850 DCA Backflow Preventer 2 in. FPT | FE850-200
    100%
    On-Sale $477.98 List Price $669.90
    SKU: FE850-200
  13. Febco U850 DCA Backflow Preventer 2" Union End Ball Valves | FEU850-200
    Febco U850 DCA Backflow Preventer 2 in. Union End Ball Valves | FEU850-200
    On-Sale $655.98 List Price $800.10
    SKU: FEU850-200
  14. Febco LF850 Lead Free DCA Backflow Preventer 3" NRS Gate Valves | LF850-300-NRS
    Febco LF850 Lead Free DCA Backflow Preventer 3 in. NRS Gate Valves | LF850-300-NRS
    On-Sale $2,415.98 List Price $3,897.08
    SKU: LF850-300-NRS
  15. 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 $2,492.98 List Price $4,021.29
    SKU: LF850-400-NRS
  16. Febco U850 DCA Backflow Preventer 1-1/2" Union End Ball Valves | FEU850-150
    Febco U850 DCA Backflow Preventer 1-1/2 in. Union End Ball Valves | FEU850-150
    On-Sale $513.45 List Price $685.13
    SKU: FEU850-150
  17. 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
  18. 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
  19. 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 $447.25 List Price $934.50
    SKU: WK350FT-150
  20. Wilkins 350FT DCA Backflow Preventer with SAE Male Test Cocks 2" FPT | WK350FT-200
    Wilkins 350FT DCA Backflow Preventer with SAE Male Test Cocks 2 in. FPT | WK350FT-200
    On-Sale $504.95 List Price $1,085.70
    SKU: WK350FT-200
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