Watts RK 719-RC4 1 Lead-Free Double Check Backflow Preventer

The Watts RK 719-RC4 1 is a genuine lead-free check rubber parts kit (first or second) for 1" LF719 / 719 double check valve assemblies. It features a rubber seat. This model is certified lead-free for potable-water installations.

This 1" double check rubber parts valve repair kit for series 719 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 rubber, seat O-ring 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 rubber parts valve kit

Common Questions

Will this kit fit my valve?

The RK 719-RC4 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 check rubber parts kit (first or second). Kit consists of: a disc rubber, seat O-ring and cover O-ring.

Are these genuine Watts parts?

Yes. This is the factory RK 719-RC4 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
• Seat / Seal Material: Rubber
• Pack Quantity: 24
• Country of Origin: Vietnam
• Warranty: 1 Year Limited
• MPN: RK 719-RC4 1
• Lead-Free: Yes
• Product Role: repair_kit
• Kit Type: Check Rubber Parts Kit (First or Second)
• Fits Brand: Watts
• Fits Valve Series: LF719;719
• Fits Valve Size: 1"
• Used With: 1" LF719;1" 719
• Kit Contents: Kit consists of: a disc rubber, seat O-ring and cover O-ring.
• Watts Ordering Code: 0889065
• Genuine OEM Parts: Yes