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Watts Backflow Preventer Repair Kits: First or Second Check Kit, 36JC70 - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Backflow Preventer Repair Kits: First or Second Check Kit, 36JC70

The WATTS Backflow Preventer Repair Kits: First or Second Check Kit (SKU 3G-OTH-436807) is a repair kit for Watts backflow preventers, including a disc holder. It is compatible with a 2-inch valve size and is…

SKU 3G-OTH-436807

Also listed as: RK719CK42 · RK 719 CK4 2 · RK-719-CK4-2

Brand
Watts
Item
Backflow Preventer Repair Kits: First or Second Check Kit, 36JC70
Category
Repair Kits & Parts for Watts Backflow Preventers
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Watts
Manufacturer Part Number
RK 719-CK4 2
Type
36JC70
Includes
Disc Holder
Compatible Valve Size
2 in
Compatible with Series
RK-LF719
Compatible with Mfr. Model No.
LF719

Technical Documents

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

Product Description

The WATTS Backflow Preventer Repair Kits: First or Second Check Kit (SKU 3G-OTH-436807) is a repair kit for Watts backflow preventers, including a disc holder. It is compatible with a 2-inch valve size and is designed for use with Series RK-LF719 and Model LF719. This kit is identified by manufacturer part number RK 719-CK4 2 and part number 36JC70.

Frequently Asked Questions

What is the Watts backflow preventer repair kit used for?

This Watts repair kit, part number RK 719-CK4 2, is used to service first or second check valves in backflow preventers. It includes a disc holder and is compatible with 2-inch valve sizes in Series RK-LF719 and Model LF719, helping maintain cross-connection control in plumbing systems.

What are the specifications of the Watts 36JC70 repair kit?

The Watts 36JC70 repair kit has a compatible valve size of 2 inches, includes a disc holder, and is designed for Series RK-LF719 and Model LF719 backflow preventers. Its manufacturer part number is RK 719-CK4 2, and it is also listed as OEM part number 36JC70.

Where to buy Watts backflow preventer repair kits worldwide?

3G Electric supplies Watts backflow preventer repair kits, including the RK 719-CK4 2, to customers worldwide. We handle full logistics, customs clearance, and delivery, ensuring you receive genuine Watts parts for your plumbing maintenance needs.

How to install a Watts backflow preventer repair kit?

To install a Watts repair kit, first depressurize the system and remove the check valve assembly. Replace the old disc holder and seals with the new components from the kit, ensuring proper alignment. Reassemble and test for leaks 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC67, 1 in Compatible Valve Size (MPN RK 719-CK4 1)
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WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC67, 1 in Compatible Valve Size (MPN RK 719-CK4 1)
WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC65, 719/LF719, RK-LF719 (MPN RK 719-CK4-1/2)
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WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC65, 719/LF719, RK-LF719 (MPN RK 719-CK4-1/2)
WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC68/36JC69, 719/LF719, RK-LF719 (MPN RK 719-CK4 1-1/4-1-1/2)
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WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC68/36JC69, 719/LF719, RK-LF719 (MPN RK 719-CK4 1-1/4-1-1/2)
WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC66, 719/LF719, RK-LF719 (MPN RK 719-CK4-3/4)
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WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC66, 719/LF719, RK-LF719 (MPN RK 719-CK4-3/4)
WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC53/36JC54/36JC59/36JC60 (MPN LFRK 709-CK4 2-1/2-3)
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WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC53/36JC54/36JC59/36JC60 (MPN LFRK 709-CK4 2-1/2-3)
WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC58/36JC64, 709/LF709, RK-LF709 (MPN LFRK 709-CK4 10)
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WATTS Backflow Preventer Repair Kits: First or Second Check Kit, 36JC58/36JC64, 709/LF709, RK-LF709 (MPN LFRK 709-CK4 10)

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