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Watts Backflow Preventer Repair Kits: Second Check Kit, 429J26/793HH1/812MY5/818DE7 - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Backflow Preventer Repair Kits: Second Check Kit, 429J26/793HH1/812MY5/818DE7

The Watts Second Check Kit (SKU RK 007M3-CK2-3/4, MPN RK 007M3-CK2-3/4) is a repair kit for Watts backflow preventers, including a spring. It is compatible with 3/4 in valves, the RK-007 series, and the 007M3 model…

SKU 3G-OTH-436812

Also listed as: RK007M3CK234 · RK 007M3 CK2 3 4 · RK-007M3-CK2-3-4

Brand
Watts
Item
Backflow Preventer Repair Kits: Second Check Kit, 429J26/793HH1/812MY5/818DE7
Category
Repair Kits & Parts for Watts Backflow Preventers
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Technical Specifications

Watts
Manufacturer Part Number
RK 007M3-CK2-3/4
Type
429J26/793HH1/812MY5/818DE7, 007M3, RK-007
Includes
Spring
Compatible Valve Size
3/4 in
Compatible with Series
RK-007
Compatible with Mfr. Model No.
007M3

Technical Documents

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

Product Description

The Watts Second Check Kit (SKU RK 007M3-CK2-3/4, MPN RK 007M3-CK2-3/4) is a repair kit for Watts backflow preventers, including a spring. It is compatible with 3/4 in valves, the RK-007 series, and the 007M3 model (Part No. 818DE7).

Frequently Asked Questions

What is the Watts Second Check Repair Kit used for?

The Watts Second Check Repair Kit is used to replace the second check assembly in Watts backflow preventers. It is designed for 3/4 in valves in the RK-007 series and 007M3 model, helping maintain backflow prevention in commercial and residential water systems.

What are the specifications of the Watts RK 007M3-CK2-3/4 kit?

The Watts RK 007M3-CK2-3/4 kit includes a spring and is compatible with 3/4 in valve size, RK-007 series, and 007M3 model. It is also compatible with OEM Part No. 818DE7. The manufacturer part number is RK 007M3-CK2-3/4, and the SKU is 3G-OTH-436812.

Where to buy Watts backflow repair kits worldwide?

You can source Watts backflow repair kits worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the RK 007M3-CK2-3/4 kit.

How to install the Watts second check repair kit?

To install the Watts second check repair kit, first depressurize the system and remove the backflow preventer's access cover. Replace the old second check assembly with the new kit components, including the spring, ensuring proper alignment. Reassemble and test per local plumbing codes.

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.

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