We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

Image not available
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Backflow Preventer Repair Kits: First or Second Check Kit

The WATTS Backflow Preventer Repair Kits: First or Second Check Kit (MPN RK 007-CK4-1/2) is a repair kit for Watts backflow preventers, compatible with the RK-007 series and model 007. It includes a cover O-ring and…

SKU 3G-OTH-436859

Also listed as: RK007CK412 · RK 007 CK4 1 2 · RK-007-CK4-1-2

Brand
Watts
Item
Backflow Preventer Repair Kits: First or Second Check Kit
Category
Repair Kits & Parts for Watts Backflow Preventers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Watts
Manufacturer Part Number
RK 007-CK4-1/2
Includes
Cover O-Ring
Compatible Valve Size
1/2 in
Compatible with Series
RK-007
Compatible with Mfr. Model No.
007

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Backflow Preventer Repair Kits: First or Second Check Kit (MPN RK 007-CK4-1/2) is a repair kit for Watts backflow preventers, compatible with the RK-007 series and model 007. It includes a cover O-ring and is designed for a 1/2 in compatible valve size.

Frequently Asked Questions

What is the Watts backflow preventer repair kit used for?

The Watts backflow preventer repair kit (MPN RK 007-CK4-1/2) is used to replace the first or second check assembly in Watts 007 series backflow preventers. It includes a cover O-ring and is designed for 1/2 in valve sizes, ensuring proper sealing and backflow protection in potable water systems.

What are the specifications of the Watts RK 007-CK4-1/2 repair kit?

The Watts RK 007-CK4-1/2 repair kit is compatible with a 1/2 in valve size, the RK-007 series, and Watts model 007 backflow preventers. It includes a cover O-ring and is identified by manufacturer part number RK 007-CK4-1/2. It also matches OEM part number 429J25.

Where to buy Watts backflow preventer repair kits worldwide?

3G Electric supplies Watts backflow preventer repair kits, including the RK 007-CK4-1/2, to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this genuine Watts repair kit.

How to install a Watts backflow preventer check kit?

To install the Watts RK 007-CK4-1/2 check kit, first depressurize the system and remove the valve cover. Replace the old check assembly with the new kit, ensuring the cover O-ring is seated properly. Reassemble and test for leaks per local plumbing codes. Always follow the manufacturer's instructions.

Used in

Common applications for Watts
Industrial burner gas safety systems — Watts HF2000 filters with GF-series seal kits maintain clean, regulated gas supply to burner pilot and main flame controls
Commercial heating and boiler installations — Modular filter assemblies support preventive maintenance and component replacement without full system shutdown
Process gas delivery pipelines — DN25 through DN125 filter bodies accommodate varying flow rates and inlet pressures across manufacturing and chemical processes
Gas pressure regulation benches — Multi-stage Watts filter platforms integrate with pressure reducers and safety shutoff valves in test and calibration environments
Equipment retrofit and upgrade projects — Available connection sizes and seal kits enable adaptation of newer Watts components into legacy gas control systems
Planned maintenance and spare-parts inventory — Filter seal kits allow facilities to stock consumables in advance, reducing downtime during scheduled gas system servicing

Watts Products

3G Electric supplies Watts repair kits & parts for watts backflow preventers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Watts
Watts
WATTS Backflow Preventer Repair Kits: Complete Rubber Parts Kit, 1/2 in Compatible Valve Size, 007 (MPN RK 007-RT 1/2)
WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC70, 2 in Compatible Valve Size (MPN RK 719-CK4 2)
Watts
WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC70, 2 in Compatible Valve Size (MPN RK 719-CK4 2)
WATTS Backflow Preventer Repair Kits: Second Check Kit, 809GC7, 1 in Compatible Valve Size, RK-919 (MPN RK 919-CK2 1)
Watts
WATTS Backflow Preventer Repair Kits: Second Check Kit, 809GC7, 1 in Compatible Valve Size, RK-919 (MPN RK 919-CK2 1)
WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC67, 1 in Compatible Valve Size (MPN RK 719-CK4 1)
Watts
WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC67, 1 in Compatible Valve Size (MPN RK 719-CK4 1)
Watts
Watts
WATTS Backflow Preventer Repair Kits: Second Check Kit, 1KYE6/793HG6, Check Assembly/Cover O-Ring (MPN RK SS009M3-CK2-1/4-3/4)
WATTS Backflow Preventer Repair Kits: Second Check Kit, 809GC6, 3/4 in Compatible Valve Size, RK-919 (MPN RK 919-CK2-3/4)
Watts
WATTS Backflow Preventer Repair Kits: Second Check Kit, 809GC6, 3/4 in Compatible Valve Size, RK-919 (MPN RK 919-CK2-3/4)

More from Watts

View all Watts parts
WATTS Backflow Preventer Repair Kits: Second Check Kit, 36JD25/36JD26/36JD27/6AUW9, 994/994RPDA (MPN RK994/994RPDA-CK2-21/2-4)
Watts
WATTS Backflow Preventer Repair Kits: Second Check Kit, 36JD25/36JD26/36JD27/6AUW9, 994/994RPDA (MPN RK994/994RPDA-CK2-21/2-4)
WATTS Backflow Preventer Repair Kits: First Check Kit, 522P31, 009/LF009, Repair Kit, RK-LF009 (MPN LFRK 009-CK1 2-1/2-3)
Watts
WATTS Backflow Preventer Repair Kits: First Check Kit, 522P31, 009/LF009, Repair Kit, RK-LF009 (MPN LFRK 009-CK1 2-1/2-3)
WATTS Backflow Preventer Repair Kits: Complete Rubber Parts Kit, 809GC7, 1 in Compatible Valve Size (MPN RK 919-RT 1)
Watts
WATTS Backflow Preventer Repair Kits: Complete Rubber Parts Kit, 809GC7, 1 in Compatible Valve Size (MPN RK 919-RT 1)
WATTS Backflow Preventer Repair Kit: Relief Valve Kit, 793PG4/793PG6, 4 in Compatible Valve Size (MPN RK909RT4)
Watts
WATTS Backflow Preventer Repair Kit: Relief Valve Kit, 793PG4/793PG6, 4 in Compatible Valve Size (MPN RK909RT4)
WATTS Backflow Preventer Repair Kits: First Check Kit, 36JD29/36JD30, 994/994RPDA, Repair Kit (MPN RK 994/994RPDA-CK1 8-10)
Watts
WATTS Backflow Preventer Repair Kits: First Check Kit, 36JD29/36JD30, 994/994RPDA, Repair Kit (MPN RK 994/994RPDA-CK1 8-10)
WATTS Vent Elbows: Air Gaps and Elbow, 3/4 in to 1 in Compatible Valve Size, Repair Part, 909 ELC (MPN 909ELC)
Watts
WATTS Vent Elbows: Air Gaps and Elbow, 3/4 in to 1 in Compatible Valve Size, Repair Part, 909 ELC (MPN 909ELC)
WATTS Backflow Preventer Repair Kit: Complete Rubber Parts Kit, 26X140/793HG8/818DD8, Repair Kit (MPN 009 M2 1 Rubber Kit)
Watts
WATTS Backflow Preventer Repair Kit: Complete Rubber Parts Kit, 26X140/793HG8/818DD8, Repair Kit (MPN 009 M2 1 Rubber Kit)
WATTS Second Check Valve Repair Kit: Second Check Valve Repair Kit, 793PG7, 6 LF909, Repair Kit (MPN 909 6 2nd Check Kit)
Watts
WATTS Second Check Valve Repair Kit: Second Check Valve Repair Kit, 793PG7, 6 LF909, Repair Kit (MPN 909 6 2nd Check Kit)