Dual Check Valves for Backflow

Create New Account Request an Account

Remember me

Not recommended if on a shared computer

Customer Registration

If you're already a SiteOne Account Holder, you can request Online Access to take advantage of these benefits:

Customer-Specific Pricing
Order History & Invoices
Shopping Lists

Customer Client Estimates
SiteOne eWallet
SiteOne Mobile App

ACCOUNT HOLDERS

Need online access?

If you already have SiteOne Account but need online access, you can get started here.

Get Online Access

NON-ACCOUNT HOLDERS

Need a SiteOne Account?

To get online access, you'll first need a SiteOne Account. You can get started here.

Benefits of a SiteOne Account

Check Pricing and Inventory

See your personalized price and what you local branch has in stock

Shop 5000+ items anytime

Access our full catelogue of products from any device 24/7

Place orders from anywhere

Order online for in-store pickup or job site delivery

Returning Customers

Create New Account Request an Account

Remember me

Not recommended if on a shared computer

Customer Registration

If you're already a SiteOne Account Holder, you can request Online Access to take advantage of these benefits:

Customer-Specific Pricing
Order History & Invoices
Shopping Lists

Customer Client Estimates
SiteOne eWallet
SiteOne Mobile App

ACCOUNT HOLDERS

Need online access?

If you already have SiteOne Account but need online access, you can get started here.

Get Online Access

NON-ACCOUNT HOLDERS

Need a SiteOne Account?

To get online access, you'll first need a SiteOne Account. You can get started here.

Benefits of a SiteOne Account

Check Pricing and Inventory

See your personalized price and what you local branch has in stock

Shop 5000+ items anytime

Access our full catelogue of products from any device 24/7

Place orders from anywhere

Order online for in-store pickup or job site delivery

Returning Customers

Create New Account Request an Account

Remember me

Not recommended if on a shared computer

Customer Registration

If you're already a SiteOne Account Holder, you can request Online Access to take advantage of these benefits:

Customer-Specific Pricing
Order History & Invoices

Shopping Lists
Customer Client Estimates

SiteOne eWallet
SiteOne Mobile App

ACCOUNT HOLDERS

Need online access?

If you already have SiteOne Account but need online access, you can get started here.

Get Online Access

NON-ACCOUNT HOLDERS

Need a SiteOne Account?

To get online access, you'll first need a SiteOne Account. You can get started here.

Checkout as Guest

If you want to check out without a SiteOne Account, be our guest. You can create an online account later.

Checkout as Guest

Benefits of a SiteOne Account

Check Pricing and Inventory

See your personalized price and what you local branch has in stock

Shop 5000+ items anytime

Access our full catelogue of products from any device 24/7

Place orders from anywhere

Order online for in-store pickup or job site delivery

Home
All Products
Irrigation
Backflow
Dual Check Valves

If you update your home branch it may affect items currently in your cart.

Filters

0 Selected

In-Stock today at

Conroe and Nearby 0
Shipping Available 0
You're shopping Conroe, TX Change preferred branch
- All nearby branches
- Spring TX #214 10.1 miles
- Houston TX #1133 17.7 miles
- Houston TX #1239 17.7 miles
- Humble TX #267 18.8 miles
- Houston TX #204 27.1 miles
- Houston TX #679 30.4 miles
- Katy TX #552 34.9 miles
- Katy TX #1022 36.8 miles
- Stafford TX #518 40.6 miles
- Friendswood TX #510 47.9 miles
- College Station TX #162 57.2 miles
- College Station TX #269 58.0 miles

All Brands

Zurn 5
Apollo 3
Watts 3

Price

$50-$199.99 10
$500-$999.99 1

Body Material

Brass 3
Bronze 6
Cast Bronze 1
Glass-Reinforced Nylon, Delrin, Buna Nitrile, Stainless Steel 1

Connection Size

1 in. x 1 in. 6
3/4 in. x 3/4 in. 3
1-1/2 in. x 1-1/2 in. 1

Connection Type

Fnpt x Fnpt 4
Union Fnpt x Fnpt 3
Mnpt x Fnpt 1
Mnpt x Union Fnpt 1
Union Fnpt x Mnpt 1

Item

Valve 9
Preventer 1

Pressure Rating

175 PSI 7
150 PSI 2

Series

LF7R Series 3
DuCLF4A Series 2

Type

Dual Check 8
Backflow 1
Dual Check Valve 1

View

Showing 1-11 of 11

View

Showing 1-11 of 11

Returning Customers

Sign in to your account

Password

Remember me (Not recommended if on a
shared computer)

Available to Order" Available for Backorder from

Add this product to a list selected below. If you dont see the list you want, you can create a new one.

Select a List:

In order to add this item to a list, you will need to create a list. Enter a name for the list below and the selected product will be automatically added to it.

Please Enter List Name.

New List Name

List name already exists. Please enter a new name.

Add to List

List name already exists. Please enter a new name.

Please Enter List Name.

Returning Customers

Sign in to your account

Password

Remember me (Not recommended if on a
shared computer)

Apollo Dual Check Valve 3/4 in. Lead Free Bronze FNPT

4ALF3A44A | 1 Option

Add to List

Not Available
Online in Your Area

Please enter a valid quantity.

Expect delays in receiving full order.

Retail Price

$111.15
^Each

Pick-Up

Delivery

Shipping

No Locations with Inventory Nearby.

Available to Order" Available for Backorder from

Add this product to a list selected below. If you dont see the list you want, you can create a new one.

Select a List:

In order to add this item to a list, you will need to create a list. Enter a name for the list below and the selected product will be automatically added to it.

Please Enter List Name.

New List Name

List name already exists. Please enter a new name.

Add to List

List name already exists. Please enter a new name.

Please Enter List Name.

Returning Customers

Sign in to your account

Password

Remember me (Not recommended if on a
shared computer)

Dual Check Valve Union 1 in. Female x Female Lead Free

0072205 | 1 Option

Add to List

Not Available
Online in Your Area

Please enter a valid quantity.

Expect delays in receiving full order.

Retail Price

$172.39
^Each

Pick-Up

Delivery

Shipping

No Locations with Inventory Nearby.

More Content From SiteOne Experts

Available to Order" Available for Backorder from

Add this product to a list selected below. If you dont see the list you want, you can create a new one.

Select a List:

In order to add this item to a list, you will need to create a list. Enter a name for the list below and the selected product will be automatically added to it.

Please Enter List Name.

New List Name

List name already exists. Please enter a new name.

Add to List

List name already exists. Please enter a new name.

Please Enter List Name.

Returning Customers

Sign in to your account

Password

Remember me (Not recommended if on a
shared computer)

Wilkins 700XL Dual Check Valve Lead Free Bronze 1 in. Union FNPT x FNPT

1UFX1F-700XL | 2 Options

Add to List

Not Available
Online in Your Area

Please enter a valid quantity.

Expect delays in receiving full order.

Pick-Up

Delivery

Shipping

No Locations with Inventory Nearby.

Available to Order" Available for Backorder from

Add this product to a list selected below. If you dont see the list you want, you can create a new one.

Select a List:

In order to add this item to a list, you will need to create a list. Enter a name for the list below and the selected product will be automatically added to it.

Please Enter List Name.

New List Name

List name already exists. Please enter a new name.

Add to List

List name already exists. Please enter a new name.

Please Enter List Name.

Returning Customers

Sign in to your account

Password

Remember me (Not recommended if on a
shared computer)

Wilkins 700XL Dual Check Valve Lead Free Bronze 3/4 in. Union FNPT x FNPT

34UFX34F-700XL | 2 Options

Add to List

Not Available
Online in Your Area

Please enter a valid quantity.

Expect delays in receiving full order.

Retail Price

$136.20
^Each

Pick-Up

Delivery

Shipping

No Locations with Inventory Nearby.

Available to Order" Available for Backorder from

Add this product to a list selected below. If you dont see the list you want, you can create a new one.

Select a List:

In order to add this item to a list, you will need to create a list. Enter a name for the list below and the selected product will be automatically added to it.

Please Enter List Name.

New List Name

List name already exists. Please enter a new name.

Add to List

List name already exists. Please enter a new name.

Please Enter List Name.

Returning Customers

Sign in to your account

Password

Remember me (Not recommended if on a
shared computer)

Wilkins 705 Dual Check Valve Plastic 1 in. FIPT

1UFX1F-705 | 2 Options

Add to List

Not Available
Online in Your Area

Please enter a valid quantity.

Expect delays in receiving full order.

Retail Price

$112.86
^Each

Pick-Up

Delivery

Shipping

No Locations with Inventory Nearby.

Available to Order" Available for Backorder from

Add this product to a list selected below. If you dont see the list you want, you can create a new one.

Select a List:

In order to add this item to a list, you will need to create a list. Enter a name for the list below and the selected product will be automatically added to it.

Please Enter List Name.

New List Name

List name already exists. Please enter a new name.

Add to List

List name already exists. Please enter a new name.

Please Enter List Name.

Returning Customers

Sign in to your account

Password

Remember me (Not recommended if on a
shared computer)

Zurn High Capacity Dual Check Valve Lead Free 1-1/2 in.

112UFX112F-700XLFP | 2 Options

Add to List

Not Available
Online in Your Area

Please enter a valid quantity.

Expect delays in receiving full order.

Retail Price

$634.84
^Each

Pick-Up

Delivery

Shipping

No Locations with Inventory Nearby.

Available to Order" Available for Backorder from

Add this product to a list selected below. If you dont see the list you want, you can create a new one.

Select a List:

In order to add this item to a list, you will need to create a list. Enter a name for the list below and the selected product will be automatically added to it.

Please Enter List Name.

New List Name

List name already exists. Please enter a new name.

Add to List

List name already exists. Please enter a new name.

Please Enter List Name.

Returning Customers

Sign in to your account

Password

Remember me (Not recommended if on a
shared computer)

Apollo Backflow Preventer Dual Check 1 in. Bronze MNPT x FNPT

4ALF3B55A | 1 Option

Add to List

Not Available
Online in Your Area

Please enter a valid quantity.

Expect delays in receiving full order.

Retail Price

$118.75
^Each

Pick-Up

Delivery

Shipping

No Locations with Inventory Nearby.

Available to Order" Available for Backorder from

Add this product to a list selected below. If you dont see the list you want, you can create a new one.

Select a List:

In order to add this item to a list, you will need to create a list. Enter a name for the list below and the selected product will be automatically added to it.

Please Enter List Name.

New List Name

List name already exists. Please enter a new name.

Add to List

List name already exists. Please enter a new name.

Please Enter List Name.

Returning Customers

Sign in to your account

Password

Remember me (Not recommended if on a
shared computer)

Apollo 4A Dual Check Valve Lead Free Bronze 1 in. FNPT

4ALF3A55A | 1 Option

Add to List

Not Available
Online in Your Area

Please enter a valid quantity.

Expect delays in receiving full order.

Retail Price

$118.75
^Each

Pick-Up

Delivery

Shipping

No Locations with Inventory Nearby.

Available to Order" Available for Backorder from

Add this product to a list selected below. If you dont see the list you want, you can create a new one.

Select a List:

In order to add this item to a list, you will need to create a list. Enter a name for the list below and the selected product will be automatically added to it.

Please Enter List Name.

New List Name

List name already exists. Please enter a new name.

Add to List

List name already exists. Please enter a new name.

Please Enter List Name.

Returning Customers

Sign in to your account

Password

Remember me (Not recommended if on a
shared computer)

Watts LF7R-3-U2 Dual Check Valve Lead Free 1 in. MNPT x Union FNPT

0072229 | 1 Option

Add to List

Not Available
Online in Your Area

Please enter a valid quantity.

Expect delays in receiving full order.

Retail Price

$137.61
^Each

Pick-Up

Delivery

Shipping

No Locations with Inventory Nearby.