Watts RK 719R10-CK4 Lead-Free Double Check Backflow Preventer

The Watts RK 719R10-CK4 is a genuine lead-free first or second check kit for LF719 / 719R10 / LF719R10 double check valve assemblies. This model is certified lead-free for potable-water installations.

This double check valve repair kit is designed to protect drinking water supplies from dangerous cross-connections in accordance with national plumbing codes and water authority requirements. This kit consists of a disc holder, spring and cover O-ring. Check with local inspection authorities for installation requirements.

Features

• Factory Replacement Kit
• No special tools required for changing parts
• All parts are made of high quality materials
• Double check valve kit

Common Questions

Will this kit fit my valve?

The RK 719R10-CK4 fits Watts series LF719 / 719R10 / LF719R10. 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: a disc holder, spring and cover O-ring.

Are these genuine Watts parts?

Yes. This is the factory RK 719R10-CK4 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 / 719R10 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 719R10-CK4
• Lead-Free: Yes
• Product Role: repair_kit
• Kit Type: First or Second Check Kit
• Fits Brand: Watts
• Fits Valve Series: LF719;719R10;LF719R10
• Kit Contents: Kit consists of: a disc holder, spring and cover O-ring.
• Watts Ordering Code: 0888100
• Genuine OEM Parts: Yes