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Backflow Repair Parts
- Ames
  
  1/4"
  3/8"
  1/2"
  3/4"
  1"
  1 1/4"
  1 1/2"
  2"
  2 1/2"
  3"
  4"
  6"
  8"
  10"
  12"
- Conbraco/Apollo
  
  1/4"
  3/8"
  1/2"
  3/4"
  1"
  1 1/4"
  1 1/2"
  2"
  2 1/2"
  3"
  4"
  6"
  8"
  10"
  12"
- Deringer
  
  2"
  2 1/2"
  3"
  4"
  6"
  8"
- Febco
  
  1/2"
  3/4"
  1"
  1 1/4"
  1 1/2"
  2"
  2 1/2"
  3"
  4"
  6"
  8"
  10"
- Hersey
  
  3/4"
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  1 1/4"
  1 1/2"
  2"
  2 1/2"
  3"
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  8"
  10"
- Watts
  
  1/4"
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- Wilkins
  
  1/2"
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  1 1/4"
  1 1/2"
  2"
  2 1/2"
  3"
  4"
  6"
  8"
  10"
  12"
- Shop All Backflow Repair Parts
Backflow Devices
Installation Accessories
- Air Gaps
- Bypass Meters
- Valve Setters
  
  Ames
  Febco
  Watts
  Wilkins
- Enclosures
  
  Aluminum Enclosures
  Heat Wires
  Roof Heat Wires
  Insulated Pillows
  WattsBox
- Fire Thread Adaptors
- Strainers
  
  Ames
  Febco
  Watts
  Wilkins
- Flange Packs
- Test Cocks
- Tools & Accessories
- IOT Kits
- LF NPT Pipe Fittings
  
  Fittings
  Nipples
  Hose Bibbs
- Valve Stands
- Shop All Installation Accessories
- Pressure Reducing Valves
- Pressure Relief Valve
- Tamper Switch
Test Kits & Calibrations
- A'la Carte Calibrations
- Calibration Packages
  
  Silver
  Platinum
  Gold
- Backflow Test Kits & Accessories
  
  Arbiter
  Mid-West
  Watts
- Adapters
- Hoses
- Test Cocks
- Cases
- Flow Switches
- Shop All Test Kits & Calibrations
Shutoff Valves
- Ball Valves
  
  Ames
  Febco
  Watts
  Wilkins
  Matco Norca
- Butterfly Valves
  
  1"
  1 1/4"
  1 1/2"
  2"
  2 1/2"
  3"
  4"
  6"
  8"
  10"
- Gate Valves
  
  2 1/2"
  3"
  4"
  6"
  8"
  10"
  12"
- Gear Operated Ball Valves
- KV Repair Parts
  
  Cover O-Rings
  NRS Models
  OSY Models
  Packing Parts
  Packing Tools
- Pressure Reducing Valves
  
  Watts
  Wilkins
- Soft Seated Checks
  
  1/2"
  3/4"
  1"
  1 1/4"
  1 1/2"
  2"
- Test Cocks
- Shop All Shutoff Valves
Fire Products
PPE, First Aid & Tools
- Consumables
  
  Absorbent Materials
  Batteries
  Brushes
  Flashlights
  Lubricants, Cleaners & Chemicals
  Paper Products
  Pens, Paint & Markers
  Pest & Insect Control
  Sanitizer/Hand Cleader
  Wipes
  Zip Ties
- First Aid
  
  AED
  Bandages
  Eyewash
  Kits
  Other
- Personal Protective Equipment
  
  Coveralls
  Glasses
  Gloves
  Hard Hats & Accessories
  Hearing Protection
  Hi-Viz
  Other
  Sqwincher
  Sun & Heat Protection
  Hydration Solutions
- Tools & Storage
  
  Bins, Bags & Cases
  Cutting Tools
  Drills & Bits
  Extension Cords
  Hammers
  Jacks
  Locks
  Other
  Pipe Wrenches
  Pliers
  Screwdrivers
  Sockets
  Tape Measures
  Wrenches
  Tool Chests
  Extractors
  Pry Bars
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- Traffic Products
  
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  Other
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- Shop All PPE, First Aid & Tools

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Backflow Devices
Watts
DCDA - Double Check Detector Assemblies

Collection: Backflow Devices - Watts - DCDA - Double Check Detector Assemblies

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209 products

Watts 12" 774DCDA Double Check Detector Assembly Backflow Preventer, OSY Shutoff, Cubic Feet Meter, Short Lay Length

Watts 12" 774DCDA Double Check Detector Assembly Backflow Preventer, OSY Shutoff, Cubic Feet Meter, Short Lay Length

Regular price $48,099.75

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Item #: DDP0438084
Availability: Special Order
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Watts 2 1/2" 774DCDA Double Check Detector Assembly Backflow Preventer, Domestic OSY Shutoff, Cubic Feet Meter, Short Lay Length

Watts 2 1/2" 774DCDA Double Check Detector Assembly Backflow Preventer, Domestic OSY Shutoff, Cubic Feet Meter, Short Lay Length

Regular price $9,791.25

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Item #: DDP0439327
Availability: Special Order
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Watts 6" 757DCDA Double Check Detector Assembly Backflow Preventer, UL/FM Butterfly Valve Shutoffs, Gallons/Minute Meter

Watts 6" 757DCDA Double Check Detector Assembly Backflow Preventer, UL/FM Butterfly Valve Shutoffs, Gallons/Minute Meter

Regular price $12,602.25

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Item #: DDP0111575
Availability: Special Order
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Watts 3" 757DCDA Double Check Detector Assembly Backflow Preventer, OSY Shutoff Valves, Cubic Feet Meter

Watts 3" 757DCDA Double Check Detector Assembly Backflow Preventer, OSY Shutoff Valves, Cubic Feet Meter

Regular price $8,751.00

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Item #: DDP0111545
Availability: Special Order
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Watts 3" 757DCDA Double Check Detector Assembly Backflow Preventer, UL/FM Butterfly Valve Shutoffs, Cubic Feet Meter

Watts 3" 757DCDA Double Check Detector Assembly Backflow Preventer, UL/FM Butterfly Valve Shutoffs, Cubic Feet Meter

Regular price $9,268.50

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Item #: DDP0111569
Availability: Special Order
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Watts 6" 757DCDA Double Check Detector Assembly Backflow Preventer, UL/FM Butterfly Valve Shutoffs, Gallons/Minute Meter, N Pattern

Watts 6" 757DCDA Double Check Detector Assembly Backflow Preventer, UL/FM Butterfly Valve Shutoffs, Gallons/Minute Meter, N Pattern

Regular price $18,872.25

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Item #: DDP0111583
Availability: Special Order
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Watts 6" 757DCDA Double Check Detector Assembly Backflow Preventer, UL/FM Butterfly Valve Shutoffs x Post Indicator Valve, Cubic Feet Meter

Watts 6" 757DCDA Double Check Detector Assembly Backflow Preventer, UL/FM Butterfly Valve Shutoffs x Post Indicator Valve, Cubic Feet Meter

Regular price $45,081.75

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Item #: DDP0112084
Availability: Special Order
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Watts 3" 757DCDA Double Check Detector Assembly Backflow Preventer, Domestic OSY Shutoff Valves, Cubic Feet Meter

Watts 3" 757DCDA Double Check Detector Assembly Backflow Preventer, Domestic OSY Shutoff Valves, Cubic Feet Meter

Regular price $9,887.25

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Item #: DDP0113011
Availability: Special Order
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Watts 10" 774DCDA Double Check Detector Assembly Backflow Preventer, No Shutoff, Gallons/Minute Meter, Short Lay Length

Watts 10" 774DCDA Double Check Detector Assembly Backflow Preventer, No Shutoff, Gallons/Minute Meter, Short Lay Length

Regular price $25,534.50

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Item #: DDP0438047
Availability: Special Order
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Watts 6" 774DCDA Double Check Detector Assembly Backflow Preventer, Domestic OSY Shutoff, Cubic Feet Meter, Short Lay Length

Watts 6" 774DCDA Double Check Detector Assembly Backflow Preventer, Domestic OSY Shutoff, Cubic Feet Meter, Short Lay Length

Regular price $15,462.75

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Item #: DDP0439330
Availability: Special Order
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Watts 3" 757DCDA Double Check Detector Assembly Backflow Preventer, OSY Shutoff Valves, Gallons/Minute Meter

Watts 3" 757DCDA Double Check Detector Assembly Backflow Preventer, OSY Shutoff Valves, Gallons/Minute Meter

Regular price $8,751.00

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Item #: DDP0111551
Availability: Special Order
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Watts 10" 774DCDA Double Check Detector Assembly Backflow Preventer, OSY Shutoff, Gallons/Minute Meter, Short Lay Length

Watts 10" 774DCDA Double Check Detector Assembly Backflow Preventer, OSY Shutoff, Gallons/Minute Meter, Short Lay Length

Regular price $35,676.00

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Item #: DDP0438045
Availability: Special Order
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Watts 10" 774DCDA Double Check Detector Assembly Backflow Preventer, OSY Shutoff, Cubic Feet Meter, Short Lay Length

Watts 10" 774DCDA Double Check Detector Assembly Backflow Preventer, OSY Shutoff, Cubic Feet Meter, Short Lay Length

Regular price $35,676.00

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Item #: DDP0438044
Availability: Special Order
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Watts 10" 774DCDA Double Check Detector Assembly Backflow Preventer, Domestic OSY Shutoff, Cubic Feet Meter, Short Lay Length

Watts 10" 774DCDA Double Check Detector Assembly Backflow Preventer, Domestic OSY Shutoff, Cubic Feet Meter, Short Lay Length

Regular price $38,169.00

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Item #: DDP0439332
Availability: Special Order
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Watts 3" 757DCDA Double Check Detector Assembly Backflow Preventer, OSY Shutoff Valves, Gallons/Minute Meter, N Pattern

Watts 3" 757DCDA Double Check Detector Assembly Backflow Preventer, OSY Shutoff Valves, Gallons/Minute Meter, N Pattern

Regular price $11,272.50

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Item #: DDP0111563
Availability: Special Order
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Watts 3" 757DCDA Double Check Detector Assembly Backflow Preventer, UL/FM Butterfly Valve Shutoffs, Gallons/Minute Meter

Watts 3" 757DCDA Double Check Detector Assembly Backflow Preventer, UL/FM Butterfly Valve Shutoffs, Gallons/Minute Meter

Regular price $9,268.50

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Item #: DDP0111573
Availability: Special Order
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Watts 3" 757DCDA Double Check Detector Assembly Backflow Preventer, OSY Shutoff Valves, Without Meter

Watts 3" 757DCDA Double Check Detector Assembly Backflow Preventer, OSY Shutoff Valves, Without Meter

Regular price $8,586.00

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Item #: DDP0111838
Availability: Special Order
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Watts 8" 757DCDA Double Check Detector Assembly Backflow Preventer, OSY Shutoff Valves, Gallons/Minute Meter

Watts 8" 757DCDA Double Check Detector Assembly Backflow Preventer, OSY Shutoff Valves, Gallons/Minute Meter

Regular price $21,807.75

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Item #: DDP0111554
Availability: Special Order
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Watts 2 1/2" 757DCDA Double Check Detector Assembly Backflow Preventer, OSY Shutoff Valves, Cubic Feet Meter

Watts 2 1/2" 757DCDA Double Check Detector Assembly Backflow Preventer, OSY Shutoff Valves, Cubic Feet Meter

Regular price $8,215.50

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Item #: DDP0111544
Availability: Special Order
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Watts 2 1/2" 757DCDA Double Check Detector Assembly Backflow Preventer, UL/FM Butterfly Valve Shutoffs, Gallons/Minute Meter

Watts 2 1/2" 757DCDA Double Check Detector Assembly Backflow Preventer, UL/FM Butterfly Valve Shutoffs, Gallons/Minute Meter

Regular price $8,733.00

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Item #: DDP0111572
Availability: Special Order
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Watts 3" 757DCDA Double Check Detector Assembly Backflow Preventer, UL/FM Butterfly Valve Shutoffs, Without Meter

Watts 3" 757DCDA Double Check Detector Assembly Backflow Preventer, UL/FM Butterfly Valve Shutoffs, Without Meter

Regular price $9,102.75

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Item #: DDP0111850
Availability: Special Order
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Watts 8" 757DCDA Double Check Detector Assembly Backflow Preventer, UL/FM Butterfly Valve Shutoffs, Cubic Feet Meter, N Pattern

Watts 8" 757DCDA Double Check Detector Assembly Backflow Preventer, UL/FM Butterfly Valve Shutoffs, Cubic Feet Meter, N Pattern

Regular price $31,783.50

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Item #: DDP0111749
Availability: Special Order
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Watts 2 1/2" 774DCDA Double Check Detector Assembly Backflow Preventer, OSY Shutoff, Cubic Feet Meter, Short Lay Length

Watts 2 1/2" 774DCDA Double Check Detector Assembly Backflow Preventer, OSY Shutoff, Cubic Feet Meter, Short Lay Length

Regular price $9,152.25

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Item #: DDP0437704
Availability: Special Order
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Watts 3" 757DCDA Double Check Detector Assembly Backflow Preventer, Domestic OSY Shutoff Valves, Without Meter, N Pattern

Watts 3" 757DCDA Double Check Detector Assembly Backflow Preventer, Domestic OSY Shutoff Valves, Without Meter, N Pattern

Regular price $12,543.75

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Item #: DDP0113035
Availability: Special Order
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