Skip to content

Your cart is empty

Continue shopping

Have an account?

Log in to check out faster.

Your Cart

Loading...

Are you tax exempt? - Click Here

Subtotal

$0.00 USD

Welcome to BackflowPreventer.com a Water Specialties Website

About Us Contact Us Locations

Sign In / Register

Search

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"
  1"
  1 1/4"
  1 1/2"
  2"
  2 1/2"
  3"
  4"
  6"
  8"
  10"
- Watts
  
  1/4"
  1/2"
  3/4"
  1"
  1 1/4"
  1 1/2"
  2"
  2 1/2"
  3"
  4"
  6"
  8"
  10"
  12"
- Wilkins
  
  1/2"
  3/4"
  1"
  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
  Tool Kits
- Traffic Products
  
  Fuel Cans & Funnels
  Hazard Tape
  Other
  Traffic Cones
  Traffic Control
- Shop All PPE, First Aid & Tools

About Us Contact Us Locations

Search

Call Us Now:

(800) 336-6530

Shopping Cart: $0.00

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"
  1"
  1 1/4"
  1 1/2"
  2"
  2 1/2"
  3"
  4"
  6"
  8"
  10"
- Watts
  
  1/4"
  1/2"
  3/4"
  1"
  1 1/4"
  1 1/2"
  2"
  2 1/2"
  3"
  4"
  6"
  8"
  10"
  12"
- Wilkins
  
  1/2"
  3/4"
  1"
  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
  Tool Kits
- Traffic Products
  
  Fuel Cans & Funnels
  Hazard Tape
  Other
  Traffic Cones
  Traffic Control
- Shop All PPE, First Aid & Tools

Home
Backflow Devices - Watts - DCVA - Double Check Valve Assemblies - 12"

Collection: Backflow Devices - Watts - DCVA - Double Check Valve Assemblies - 12"

Filter Filter

Filter

Filter

7 products

Remove all

7 products

12 774-OSY-TS

12 774-OSY-TS

Regular price $35,567.25

Log in or Call for Pricing

Item #: 88003120
Availability: Special Order
View
12 774-NRS-IOT

12 774-NRS-IOT

Regular price $33,342.19

Log in or Call for Pricing

Item #: 88003408
Availability: Special Order
View
Watts 12" 774 Double Check Valve Assembly Backflow Preventer, Domestic OSY Shutoff, Short Lay Length

Watts 12" 774 Double Check Valve Assembly Backflow Preventer, Domestic OSY Shutoff, Short Lay Length

Regular price $47,895.00

Log in or Call for Pricing

Item #: DDP0439320
Availability: Special Order
View
Watts 12" 774 Double Check Valve Assembly Backflow Preventer, Short Lay Length

Watts 12" 774 Double Check Valve Assembly Backflow Preventer, Short Lay Length

Regular price $45,338.25

Log in or Call for Pricing

Item #: DDP0438080
Availability: Special Order
View
Watts 12" 774 Double Check Valve Assembly Backflow Preventer, No Shutoff, Short Lay Length

Watts 12" 774 Double Check Valve Assembly Backflow Preventer, No Shutoff, Short Lay Length

Regular price $31,909.50

Log in or Call for Pricing

Item #: DDP0438082
Availability: Special Order
View
Watts 12" 774 Double Check Valve Assembly Backflow Preventer, Domestic NRS Shutoff, Short Lay Length

Watts 12" 774 Double Check Valve Assembly Backflow Preventer, Domestic NRS Shutoff, Short Lay Length

Regular price $48,515.25

Log in or Call for Pricing

Item #: DDP0439306
Availability: Special Order
View
Watts 12" 774 Double Check Valve Assembly Backflow Preventer, OSY Shutoff, Short Lay Length

Watts 12" 774 Double Check Valve Assembly Backflow Preventer, OSY Shutoff, Short Lay Length

Regular price $44,763.75

Log in or Call for Pricing

Item #: DDP0438081
Availability: Special Order
View

Contact Info

Phone: Toll Free (800) 336-6530

Email: Info@Backflowpreventer.com

Address: 10926 David Taylor Drive
Suite 300, Charlotte, NC 28262

OPEN HOURS: Monday - Friday
7:00 AM - 8:00 PM EST

My Account

Sign In
View Cart

Customer Service

About Us
Contact Us
Locations
Store Policies
Privacy Policy
Terms & Conditions

Resources

Calibration Services
Device Lay Lengths
FED Learning Center
Lead Free Law
Repair Videos
Blog

Privacy policy
Terms of service
Refund policy
Cookie preferences

Choosing a selection results in a full page refresh.
Opens in a new window.

View Carts Save Cart Request a Quote