We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

Watts Backflow Preventer Repair Kit: Backflow Preventer Repair Kit - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Backflow Preventer Repair Kit: Backflow Preventer Repair Kit

The WATTS Backflow Preventer Repair Kit (SKU 3G-OTH-436729) is a repair kit for Watts backflow preventers, including a Second Check Repair Kit. It is compatible with a 1-1/4 in valve size, Series RK-919, and…

SKU 3G-OTH-436729

Also listed as: RK919T114112 · RK 919 T 1 1 4 1 1 2 · RK-919-T-1-1-4-1-1-2

Brand
Watts
Item
Backflow Preventer Repair Kit: Backflow Preventer Repair 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 — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Watts
Manufacturer Part Number
RK 919-T 1-1/4-1-1/2
Type
809GC8/809GC9, Repair Kit
Includes
Second Check Repair Kit
Compatible Valve Size
1-1/4 in
Compatible with Series
RK-919
Compatible with Mfr. Model No.
1-1/4 LF919-QT-S-FS

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 Kit (SKU 3G-OTH-436729) is a repair kit for Watts backflow preventers, including a Second Check Repair Kit. It is compatible with a 1-1/4 in valve size, Series RK-919, and manufacturer model number 1-1/4 LF919-QT-S-FS, with manufacturer part number RK 919-T 1-1/4-1-1/2.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Watts backflow preventer repair kit used for?

This Watts repair kit is used to service backflow preventers in commercial and industrial water systems. It includes a second check repair kit for restoring proper check-valve function, helping maintain backflow protection in plumbing, irrigation, and fire-suppression applications.

What are the specifications of the Watts RK 919-T 1-1/4-1-1/2 repair kit?

The Watts repair kit (MPN RK 919-T 1-1/4-1-1/2) is compatible with a 1-1/4 in valve size and Series RK-919. It includes a second check repair kit and is designed for use with model 1-1/4 LF919-QT-S-FS. It also corresponds to part 1-1/2 LF919-QT-S-FS.

Where to buy a Watts backflow preventer repair kit worldwide?

3G Electric supplies the Watts backflow preventer repair kit (SKU 3G-OTH-436729) to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install a Watts backflow preventer repair kit?

Installation requires depressurizing the system and disassembling the backflow preventer body. Replace the second check assembly with the included repair kit components, ensuring proper seating of seals. Reassemble and test per local plumbing codes. Always follow the manufacturer's instructions for your specific Watts model.

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
Repair kit for Watts backflow preventers, includes second check repair kit. Compatible with 1 in valve sizes, Series RK-919, and model LF919-QT-S-FS. Used to service backflow prevention assemblies in water systems
Watts
Repair kit for Watts backflow preventers, includes second check repair kit. Compatible with 1 in valve sizes, Series RK-919, and model LF919-QT-S-FS. Used to service backflow prevention assemblies in water systems
First check repair kit for Watts backflow preventers. Compatible with 2-inch valve sizes in the RK-919 series, including model 2 LF919-QT-S-FS. Used to service and restore the first check valve assembly in commercial and industrial water systems
Watts
First check repair kit for Watts backflow preventers. Compatible with 2-inch valve sizes in the RK-919 series, including model 2 LF919-QT-S-FS. Used to service and restore the first check valve assembly in commercial and industrial water systems
Second check repair kit for Watts backflow preventers. Compatible with 3/4 in valve size, Series RK-919, and model 3/4 LF919-QT-S-FS. Used to restore sealing function in backflow prevention assemblies for potable water systems
Watts
Second check repair kit for Watts backflow preventers. Compatible with 3/4 in valve size, Series RK-919, and model 3/4 LF919-QT-S-FS. Used to restore sealing function in backflow prevention assemblies for potable water systems
WATTS Backflow Preventer Repair Kits: Second Check Kit, 1-1/4 LF919-QT-S-FS/1-1/2 LF919-QT-S-FS, 919/LF919, Repair Kit, RK-919 (MPN RK 919-CK2 1-1/4-1-1/2)
Watts
WATTS Backflow Preventer Repair Kits: Second Check Kit, 1-1/4 LF919-QT-S-FS/1-1/2 LF919-QT-S-FS, 919/LF919, Repair Kit, RK-919 (MPN RK 919-CK2 1-1/4-1-1/2)
Repair kit for Watts 809GC8/809GC9 and 919/LF919 backflow preventers. Includes check assembly. Compatible with valve sizes 1-1/4 in to 1-1/2 in. Used to restore proper backflow prevention in water systems
Watts
Repair kit for Watts 809GC8/809GC9 and 919/LF919 backflow preventers. Includes check assembly. Compatible with valve sizes 1-1/4 in to 1-1/2 in. Used to restore proper backflow prevention in water systems
This repair kit is designed for servicing Watts backflow preventers, specifically the second check valve assembly. It is compatible with 1/4 in valves in the RK-919 series, including model 1/4 LF919-QT-S-FS. Used in plumbing systems to maintain backflow protection
Watts
This repair kit is designed for servicing Watts backflow preventers, specifically the second check valve assembly. It is compatible with 1/4 in valves in the RK-919 series, including model 1/4 LF919-QT-S-FS. Used in plumbing systems to maintain backflow protection

More from Watts

View all Watts parts
Repair kit for Watts backflow preventers, includes disc washer. Compatible with 1/2 in valve sizes and Series 957 models 2-1/2 - 4-757/957. Used to replace worn test cock components in backflow prevention assemblies for commercial and industrial water systems
Watts
Repair kit for Watts backflow preventers, includes disc washer. Compatible with 1/2 in valve sizes and Series 957 models 2-1/2 - 4-757/957. Used to replace worn test cock components in backflow prevention assemblies for commercial and industrial water systems
This repair kit is designed for servicing Watts Series 757 backflow preventers with 3-inch valves. It includes a sleeve O-ring to restore sealing in commercial and industrial water systems. Compatible with models 1KYD7, 1KYD9, 1KYE2, and 757
Watts
This repair kit is designed for servicing Watts Series 757 backflow preventers with 3-inch valves. It includes a sleeve O-ring to restore sealing in commercial and industrial water systems. Compatible with models 1KYD7, 1KYD9, 1KYE2, and 757
This repair kit is designed for servicing Watts backflow preventers. It includes a spring O-ring and is compatible with 1 in valve sizes, Series RK-LF719, and Model LF719. Used to replace worn first or second check components in backflow prevention assemblies
Watts
This repair kit is designed for servicing Watts backflow preventers. It includes a spring O-ring and is compatible with 1 in valve sizes, Series RK-LF719, and Model LF719. Used to replace worn first or second check components in backflow prevention assemblies
This repair kit services the relief valve on Watts 009 series backflow preventers with M2 valve sizes for 1-1/4 to 1-1/2 models. Includes a diaphragm to restore proper relief valve function. Compatible with models 009M2 and LF009M2
Watts
This repair kit services the relief valve on Watts 009 series backflow preventers with M2 valve sizes for 1-1/4 to 1-1/2 models. Includes a diaphragm to restore proper relief valve function. Compatible with models 009M2 and LF009M2
This repair kit services the first check valve on Watts Series 909 backflow preventers, including model 2-1/2-3 LF909. Compatible with valve sizes 2-1/2 to 3 inches, the kit includes lubricant. Suitable for use in commercial and industrial water systems to maintain backflow protection
Watts
This repair kit services the first check valve on Watts Series 909 backflow preventers, including model 2-1/2-3 LF909. Compatible with valve sizes 2-1/2 to 3 inches, the kit includes lubricant. Suitable for use in commercial and industrial water systems to maintain backflow protection
Watts
Watts
Repair kit for Watts 007 series backflow preventers. Includes cover O-ring. Compatible with 1/2 in valve size and model 007. Used to replace first or second check assembly in potable water systems
Repair kit for Watts Series 909 backflow preventers, compatible with valve sizes 1-1/4 in to 2 in. Includes seat O-ring. Fits models 818DD1, 818DD7, and 818DE2. Used to replace worn rubber components in commercial and industrial water systems to maintain backflow protection
Watts
Repair kit for Watts Series 909 backflow preventers, compatible with valve sizes 1-1/4 in to 2 in. Includes seat O-ring. Fits models 818DD1, 818DD7, and 818DE2. Used to replace worn rubber components in commercial and industrial water systems to maintain backflow protection
Repair kit for Watts 009 series backflow preventers. Includes two molded disc assemblies. Compatible with valve size M2 and models 3/4 009M2 and LF009M2. Used to restore sealing performance in cross-connection control systems
Watts
Repair kit for Watts 009 series backflow preventers. Includes two molded disc assemblies. Compatible with valve size M2 and models 3/4 009M2 and LF009M2. Used to restore sealing performance in cross-connection control systems