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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"
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- 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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- Watts
  
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  10"
  12"
- 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
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  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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  Hazard Tape
  Other
  Traffic Cones
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- Shop All PPE, First Aid & Tools

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Backflow Devices
Deringer
DCDA - Double Check Detector Assemblies

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

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44 products

2 1/2 DERINGER 30 GPM

2 1/2 DERINGER 30 GPM

Regular price $3,124.16

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Item #: D-2530-GPM
Availability: Limited Stock
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4 DERINGER 30 GPM

4 DERINGER 30 GPM

Regular price $3,416.17

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Item #: D-4030-GPM
Availability: Limited Stock
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8 DERINGER 30 GPM

8 DERINGER 30 GPM

Regular price $9,069.53

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Item #: D-8030-GPM
Availability: On Order
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6 DERINGER 30GX GPM

6 DERINGER 30GX GPM

Regular price $6,007.83

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Item #: D-6030GX-GPM
Availability: Special Order
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6 DERINGER 30G GPM

6 DERINGER 30G GPM

Regular price $5,220.50

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Item #: D-6030G-GPM
Availability: Special Order
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4 DERINGER 30G GPM

4 DERINGER 30G GPM

Regular price $3,530.86

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Item #: D-4030G-GPM
Availability: Special Order
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2 DERINGER 30 KIT GPM

2 DERINGER 30 KIT GPM

Regular price $3,136.71

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Item #: D-2030K-GPM
Availability: Special Order
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4 DERINGER 30X GPM

4 DERINGER 30X GPM

Regular price $3,797.41

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Item #: D-4030X-GPM
Availability: Limited Stock
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3 DERINGER 30G GPM

3 DERINGER 30G GPM

Regular price $3,479.83

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Item #: D-3030G-GPM
Availability: Special Order
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3 DERINGER 30 GPM

3 DERINGER 30 GPM

Regular price $6,230.00

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Item #: D-3030-GPM
Availability: In Stock
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8 DERINGER 30G GPM

8 DERINGER 30G GPM

Regular price $9,692.18

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Item #: D-8030G-GPM
Availability: Special Order
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6 DERINGER 30X GPM

6 DERINGER 30X GPM

Regular price $5,614.22

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Item #: D-6030X-GPM
Availability: Limited Stock
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2 1/2 DERINGER 30G GPM

2 1/2 DERINGER 30G GPM

Regular price $3,416.43

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Item #: D-2530G-GPM
Availability: Special Order
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Deringer 2 1/2" D-2530-CFM Double Check Detector Assembly, Integral Butterfly Valves, Grooved Ends, Dual-Action Checks, Cubic Feet Meter

Deringer 2 1/2" D-2530-CFM Double Check Detector Assembly, Integral Butterfly Valves, Grooved Ends, Dual-Action Checks, Cubic Feet Meter

Regular price $3,124.16

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Item #: D-2530-CFM
Availability: Special Order
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Deringer 2 1/2" D-2530G-LM Double Check Detector Assembly, OSY Shutoff Valves, Grooved End Connections, Dual-Action Checks, Less Meter

Deringer 2 1/2" D-2530G-LM Double Check Detector Assembly, OSY Shutoff Valves, Grooved End Connections, Dual-Action Checks, Less Meter

Regular price $3,327.30

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Item #: D-2530G-LM
Availability: Special Order
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Deringer 2 1/2" D-2530-LM Double Check Detector Assembly, Integral Butterfly Valves, Grooved Ends, Dual-Action Checks, Less Meter

Deringer 2 1/2" D-2530-LM Double Check Detector Assembly, Integral Butterfly Valves, Grooved Ends, Dual-Action Checks, Less Meter

Regular price $3,047.82

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Item #: D-2530-LM
Availability: Special Order
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Deringer 4" D-4030GX-CFM Double Check Detector Assembly, Low Head Loss, OSY Shutoffs, Grooved Ends, Dual-Action Checks, Cubic Feet Meter

Deringer 4" D-4030GX-CFM Double Check Detector Assembly, Low Head Loss, OSY Shutoffs, Grooved Ends, Dual-Action Checks, Cubic Feet Meter

Regular price $4,077.17

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Item #: D-4030GX-CFM
Availability: Special Order
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Deringer 4" D-4030GX-LM Double Check Detector Assembly, Low Head Loss, OSY Shutoffs, Grooved Ends, Dual-Action Checks, Less Meter

Deringer 4" D-4030GX-LM Double Check Detector Assembly, Low Head Loss, OSY Shutoffs, Grooved Ends, Dual-Action Checks, Less Meter

Regular price $4,000.75

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Item #: D-4030GX-LM
Availability: Special Order
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Deringer 6" D-6030-LM Double Check Detector Assembly, Integral Butterfly Valves, Grooved Ends, Dual-Action Checks, Less Meter

Deringer 6" D-6030-LM Double Check Detector Assembly, Integral Butterfly Valves, Grooved Ends, Dual-Action Checks, Less Meter

Regular price $4,915.46

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Item #: D-6030-LM
Availability: Special Order
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Deringer 3" D-3030G-CFM Double Check Detector Assembly, OSY Shutoff Valves, Grooved End Connections, Dual-Action Checks, Cubic Feet Meter

Deringer 3" D-3030G-CFM Double Check Detector Assembly, OSY Shutoff Valves, Grooved End Connections, Dual-Action Checks, Cubic Feet Meter

Regular price $3,479.83

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Item #: D-3030G-CFM
Availability: Special Order
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