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Watts 800M4-1/2-3/4 Vent Kit for Pressure Vacuum Breaker Backflow Preventers - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts 800M4-1/2-3/4 Vent Kit for Pressure Vacuum Breaker Backflow Preventers

The Watts 800M4-1/2-3/4 Vent Kit is a pressure vacuum breaker vent kit repair part for Watts backflow preventers. It is compatible with the Series 800M4 and valve sizes 1/2 in to 3/4 in. The kit includes a float vent…

SKU 3G-OTH-436694

Also listed as: 800M41234VentKit · 800M4 1 2 3 4 Vent Kit · 800M4-1-2-3-4-Vent-Kit

Brand
Watts
Item
800M4-1/2-3/4 Vent Kit for Pressure Vacuum Breaker Backflow Preventers
Category
Repair Kits & Parts for Watts Backflow Preventers
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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
800M4-1/2-3/4 Vent Kit
Type
1/2 - 3/4 800M4, Repair Kit
Includes
Float Vent Disc Assembly (Vent Float Seal and Spring)
Compatible Valve Size
1/2 in to 3/4 in
Compatible with Series
800M4
Compatible with Mfr. Model No.
1/2 - 3/4 800M4

Technical Documents

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

Product Description

The Watts 800M4-1/2-3/4 Vent Kit is a pressure vacuum breaker vent kit repair part for Watts backflow preventers. It is compatible with the Series 800M4 and valve sizes 1/2 in to 3/4 in. The kit includes a float vent disc assembly comprising a vent float seal and spring.

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 800M4-1/2-3/4 Vent Kit used for?

The Watts 800M4-1/2-3/4 Vent Kit is a repair part for Watts pressure vacuum breaker backflow preventers. It replaces the vent assembly in Series 800M4 units sized 1/2 in to 3/4 in, restoring proper venting function to prevent backflow contamination in commercial and residential water systems.

What are the specifications of the Watts 800M4-1/2-3/4 Vent Kit?

The Watts 800M4-1/2-3/4 Vent Kit includes a float vent disc assembly with a vent float seal and spring. It is compatible with valve sizes 1/2 in to 3/4 in and the Series 800M4. The manufacturer part number is 800M4-1/2-3/4 Vent Kit, and it is compatible with Part No. 800M4-FR.

Where to buy the Watts 800M4-1/2-3/4 Vent Kit worldwide?

3G Electric supplies the Watts 800M4-1/2-3/4 Vent Kit worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this genuine Watts repair kit to any country.

How to install the Watts 800M4-1/2-3/4 Vent Kit?

To install the Watts 800M4-1/2-3/4 Vent Kit, first depressurize and drain the backflow preventer. Remove the old vent assembly from the Series 800M4 unit, then insert the new float vent disc assembly (vent float seal and spring) into the vent port. Reassemble and test for proper operation 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
Repair kit for Watts Series 800M4 backflow preventers. Includes float vent disc assembly with vent float seal and spring. Compatible with 1-inch valve sizes and model 1 800M4. Used to service vacuum breakers in water systems
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Repair kit for Watts Series 800M4 backflow preventers. Includes float vent disc assembly with vent float seal and spring. Compatible with 1-inch valve sizes and model 1 800M4. Used to service vacuum breakers in water systems
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Repair kit for Watts 800M3 series backflow preventers. Includes float vent disc assembly with vent float seal and spring. Compatible with valve sizes 1/2 in to 3/4 in. Used to replace worn components in vacuum breakers for maintaining proper air-inlet and water-sealing function
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Repair kit for Watts Series 800 backflow preventers, compatible with valve sizes 1/2 in to 1 in. Includes bonnet O-ring and float vent disc assembly (vent float seal and spring). Used to service vacuum breakers in water systems to prevent back-siphonage
Rubber parts kit for servicing Watts 800M4 Series backflow preventers. Includes bonnet O-ring. Compatible with valve sizes 1/2 in to 3/4 in. Used to replace worn seals in plumbing systems to maintain backflow protection
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Rubber parts kit for servicing Watts 800M4 Series backflow preventers. Includes bonnet O-ring. Compatible with valve sizes 1/2 in to 3/4 in. Used to replace worn seals in plumbing systems to maintain backflow protection
Repair kit for Watts 800M2 series backflow preventers with M2 compatible valve sizes from 1/2 to 1 inch. Includes bonnet O-ring for servicing vacuum breaker components in water systems
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Repair kit for Watts 800M2 series backflow preventers with M2 compatible valve sizes from 1/2 to 1 inch. Includes bonnet O-ring for servicing vacuum breaker components in water systems

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This repair kit includes a second check module for Watts backflow preventers. It is compatible with valve sizes 2-1/2 in to 4 in and fits Series 957 and 957RPDA models. Used to restore check-valve function in backflow prevention assemblies
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