Watts RK774/774DCDA-CK2-21/2-4 Second Check Kit for Backflow Preventers
The Watts Second Check Kit (SKU 3G-OTH-436874) is a repair kit for Watts backflow preventers, containing (2) Cam Check with Check O-Rings. It is compatible with Series RK-774 and Mfr. Model No. 774, and fits valve…
SKU 3G-OTH-436874
Also listed as: RK774774DCDACK22124 · RK774 774DCDA CK2 21 2 4 · RK774-774DCDA-CK2-21-2-4
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.
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Product Description
The Watts Second Check Kit (SKU 3G-OTH-436874) is a repair kit for Watts backflow preventers, containing (2) Cam Check with Check O-Rings. It is compatible with Series RK-774 and Mfr. Model No. 774, and fits valve sizes from 2-1/2 in to 4 in.
Frequently Asked Questions
What is a Watts backflow preventer second check kit used for?
A Watts second check kit is used to repair the second check valve assembly in a backflow preventer, ensuring it prevents reverse water flow and contamination. It is designed for Watts Series 774 models and fits valve sizes from 2-1/2 in to 4 in.
What are the specifications of the Watts RK774/774DCDA-CK2-21/2-4 second check kit?
The Watts second check kit (MPN RK774/774DCDA-CK2-21/2-4) includes (2) Cam Check with Check O-Rings. It is compatible with Series RK-774 and Mfr. Model No. 774, and fits valve sizes from 2-1/2 in to 4 in. It is also compatible with Part No. 774-NRS.
Where to buy Watts backflow preventer repair kits worldwide?
3G Electric supplies Watts backflow preventer repair kits, including the second check kit for Series 774, to customers worldwide. We handle full logistics, customs clearance, and delivery, ensuring you receive the correct Watts parts for your valve size from 2-1/2 in to 4 in.
How to install a Watts second check kit in a backflow preventer?
To install a Watts second check kit, first depressurize and isolate the backflow preventer. Remove the access cover and replace the existing second check assembly with the new (2) Cam Check and Check O-Rings from the kit. Reassemble and test per local plumbing codes. Always follow the manufacturer's instructions.
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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
- Watts Repair kit for the second check valve assembly in Watts Series 774DCDA and Model 774 backflow preventers. Includes two cam checks with check O-rings. Compatible with 6-inch valve size. Used to maintain backflow protection in commercial water systems
- Watts This repair kit includes a check assembly for restoring proper sealing in Watts 009M2 backflow preventers. Compatible with 2 in valve size and Series RK-009. Used in commercial and industrial water systems to maintain cross-connection control
