Shop All Savings
Appliances
Bath & Faucets
Blinds & Window Treatment
Building Materials
Lumber & Composites
Cleaning
Decor & Furniture
Lighting & Ceiling Fans
Doors & Windows
Electrical
Flooring & Area Rugs
Hardware
Heating & Cooling
Kitchen & Kitchenware
Lawn & Garden
Outdoor Living & Patio
Paint
Plumbing
Seasonal Decor
Smart Home
Storage & Organization
Tools
Automotive
Furniture
Gift Cards
Credit Cards
View All Home Services
Tool Rental
Benefits & Services For the Pro
Project Calculators
View All DIY Projects
Local Ad
Store Finder
Site Map
#1 Home Improvement Retailer
Select store
...
...
Cart
Select store
...
...
Shop All
Services
DIY
Log In
Cart
Home
/
Plumbing
/
Valves
/
Backflow Preventers
Backflow Preventers
Get It Fast
In Stock at Store Today
Filters
Filters
Clear All
Connection: FIP
Connection: MIP x MIP
Connection: Male Hose Thread
Get It Fast
In Stock at Store Today
Availability
Show Out of Stock
Department
Plumbing
Valves
Backflow Preventers
Review Rating
5
4 & Up
3 & Up
2 & Up
1 & Up
Saving by Percentage Off
10% Off or more
Brand
Wilkins
Woodford
Price
to
Apply
$30 - $40
$150 - $200
$200 - $250
$700 - $800
$1000 - $2000
Special Values
Connection
NPSM
FIP x FIP
Sweat
Female Pipe Thread
FNPT
FIPT
FIP
FIP x Push-To-Connect
Male Hose Thread
Plain End
Ball Valve x FIP
Ball Valve x MIP
FIP Union x FIP
FPT
Female Flare
Female Hose Thread
Flanged
Flare x Flare
Male Pipe Thread
Maximum Working Temperature (F)
120
140
180
Compatible Pipe Material
Multi-Purpose
Brass
Bronze
Material
Brass
Bronze
Chrome
Iron
Application
Non-Potable Water
Potable Water
View Results
All Filters
Connection
Maximum Working Temperature (F)
Compatible Pipe Material
Brand
Price
Connection: FIP
Connection: MIP x MIP
Connection: Male Hose Thread
Clear All
6 Results
Sort by:
Top Sellers
Top Sellers
Most Popular
Price Low to High
Price High to Low
Top Rated Products
$
1351
.
87
$1514.68
Save
$162.81
(11%)
(1)
Model# 2-975XL2
Wilkins
2 in. 975XL2 Reduced Pressure Principle Backflow Preventer
Add to Cart
$
33
.
74
(30)
Model# 50H-BR
Woodford
Add-On 3/4 in. Hose Thread Brass Double-Check Backflow Preventer
Add to Cart
$
705
.
47
Model# 12-975XL2
Wilkins
1/2 in. 975XL2 Reduced Pressure Principle Backflow Preventer Valve
Add to Cart
$
238
.
61
(2)
Model# 1-350
Wilkins
1 in. 350 Double Check Backflow Preventer
Add to Cart
See Low Price in Cart
Model# 34-350FT
Wilkins
3/4 in. Double Check Composite Vessel Fast Test Cocks Valve Assembly
Add to Cart
$
30
.
99
(2)
Model# 50H-CH
Woodford
Add-On 3/4 in. Hose Thread Chrome Double-Check Backflow Preventer
Add to Cart