Watts RK 719-CK4 1 Lead-Free Double Check Backflow Preventer

The Watts RK 719-CK4 1 is a genuine lead-free first or second check kit for 1" LF719 / 719 double check valve assemblies. This model is certified lead-free for potable-water installations.

This first or second check repair kit provides all the parts necessary to repair or replace first or second check on 1 inch double check valve assembly backflow preventer, model 719. This kit consists of disc holder, spring, and cover O-ring.

Features

• Factory replacement kit
• No special tools required for servicing
• All parts are made of high quality materials
• Serviceable in the field

Common Questions

Will this kit fit my valve?

The RK 719-CK4 1 fits the 1" size of Watts series LF719 / 719. Kits are size- and series-specific, so match the model stamped on your valve body or cover before ordering.

What's included in this kit?

This is a first or second check kit. Kit consists of: disc holder, spring, and cover O-ring.

Are these genuine Watts parts?

Yes. This is the factory RK 719-CK4 1 kit built with genuine Watts OEM components. Aftermarket parts can void your assembly approval and are commonly rejected by inspectors at annual test time.

Which kit do I need if my relief valve failed the test?

Not this one — this kit services the check valve. A failed relief valve needs the RV (rubber parts) or VT (total relief valve) kit for LF719 / 719 in your size; a total repair (T) kit covers the relief valve and both checks.

Specifications

• Type: Double Check
• Pack Quantity: 6
• Country of Origin: United States
• Warranty: 1 Year Limited
• MPN: RK 719-CK4 1
• Lead-Free: Yes
• Product Role: repair_kit
• Kit Type: First or Second Check Kit
• Fits Brand: Watts
• Fits Valve Series: LF719;719
• Fits Valve Size: 1"
• Used With: 1" LF719;1" 719
• Kit Contents: Kit consists of: disc holder, spring, and cover O-ring.
• Watts Ordering Code: 0889062
• Genuine OEM Parts: Yes