Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
Watts 3/4 8A Hose Bibb Vacuum Breaker, Brass, Female GHT x Male GHT - Hose Bibb Vacuum Breakers
WattsHose Bibb Vacuum Breakers

Watts 3/4 8A Hose Bibb Vacuum Breaker, Brass, Female GHT x Male GHT

<p>The Watts 3/4 8A Hose Bibb Vacuum Breaker is a robust back-siphonage prevention device designed for water media. Constructed with a brass body and rubber seals, it offers durability and reliable performance in…

SKU 3G-OTH-440063

Also listed as: 348A · 3 4 8A · 3-4-8A

Brand
Watts
Item
3/4 8A Hose Bibb Vacuum Breaker, Brass, Female GHT x Male GHT
Part Number
3/4 8A
Category
Hose Bibb Vacuum Breakers
Available to Order
Also known as:3/4 8AWatts
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 — 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
3/4 8A
Type
For Water Media, 33°F – 180°F, Brass, Back-Siphonage
For Media
Water
Standards
ANSI A112.1.3 (ASSE 1011)
Drain Type
Manual
Body Material
Brass
Seal Material
Rubber
Connection Type
Female GHT x Male GHT
Protection Type
Back-Siphonage
Freeze Protection
Yes
Security Mechanism
Non-Removable
Vacuum Breaker Style
Hose Bib Vacuum Breaker
Hazard Protection Level
High Health Hazard
Connection Type - Side 1
GHT
Connection Type - Side 2
GHT
Includes Atmospheric Vent
No Atmospheric Vent
Includes Drain Capability
Manual Drain
Connection Gender - Side 1
Female
Connection Gender - Side 2
Male
Includes Freeze Protection
Freeze Protection Included

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

<p>The Watts 3/4 8A Hose Bibb Vacuum Breaker is a robust back-siphonage prevention device designed for water media. Constructed with a brass body and rubber seals, it offers durability and reliable performance in temperatures ranging from 33°F to 180°F. This unit features female and male GHT connections, a manual drain, and freeze protection, making it suitable for outdoor applications in Singapore's climate.</p><p>Ideal for commercial and industrial facilities, this vacuum breaker meets ANSI A112.1.3 (ASSE 1011) standards and provides high health hazard protection. As a Singapore-based supplier, 3G Electric offers SGD quotes on request, handles GST for local buyers, and ensures fast delivery across Singapore and Southeast Asia.</p>

Frequently Asked Questions

What are the connection types and material of this Watts vacuum breaker?

The Watts 3/4 8A has a female GHT (garden hose thread) on one side and a male GHT on the other, with a brass body and rubber seal.

Does this vacuum breaker provide freeze protection and what standards does it meet?

Yes, it includes freeze protection. It meets ANSI A112.1.3 (ASSE 1011) standards and is designed for high health hazard back-siphonage protection.

Used in

Common applications for Watts
Commercial plumbing – Watts standard capacity water pressure regulators (3/8 LF 26AB) for stabilizing incoming water pressure
Industrial steam systems – Watts 152A series steam pressure regulators for pressure reduction in process and heating lines
Cross-connection control – Watts 757 double check backflow preventers for commercial and industrial water supply protection
Boiler safety – Watts ASME Section XIII temperature and pressure relief valves for overpressure protection in heating systems
Hydronic heating – Watts CP16 pilot-operated pressure regulators for maintaining consistent pressure in steam or water loops
Water hammer mitigation – Watts LF15M2-A water hammer arrestors for absorbing surges in quick-closing valve applications
Not sure this is the right part? Photo-identify it

Watts Products

3G Electric supplies Watts hose bibb vacuum breakers. 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

More from Watts

View all Watts parts

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first