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Watts Backflow Preventer Repair Kits: First Check Kit, 1RCX3/1RCX5/1RCX7, 757/757DCDA - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Backflow Preventer Repair Kits: First Check Kit, 1RCX3/1RCX5/1RCX7, 757/757DCDA

The WATTS Backflow Preventer Repair Kits: First Check Kit (SKU 844GF0) is a repair kit for Watts backflow preventers, including a First Check Module. It is compatible with valve sizes 2-1/2 in to 4 in, Series RK-957…

SKU 3G-OTH-436755

Brand
Watts
Item
Backflow Preventer Repair Kits: First Check Kit, 1RCX3/1RCX5/1RCX7, 757/757DCDA
Category
Repair Kits & Parts for Watts Backflow Preventers
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Technical Specifications

Watts
Manufacturer Part Number
RK957/957RPDA-CK1-21/2-4
Type
1RCX3/1RCX5/1RCX7, 757/757DCDA, Repair Kit
Includes
First Check Module
Compatible Valve Size
2-1/2 in to 4 in
Compatible with Series
RK-957
Compatible with Mfr. Model No.
757DCDA
Compatible with Grainger Part No.
1RCX7
View Full Spec Sheet

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

Product Description

The WATTS Backflow Preventer Repair Kits: First Check Kit (SKU 844GF0) is a repair kit for Watts backflow preventers, including a First Check Module. It is compatible with valve sizes 2-1/2 in to 4 in, Series RK-957, and manufacturer model number 757DCDA. The kit is identified by manufacturer part number RK957/957RPDA-CK1-21/2-4 and is compatible with Grainger part number 1RCX7.

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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