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WATTS Anti-Siphon Vacuum Breaker: FNPT x FNPT, 3/8 in Pipe Size, Polished Chrome - Atmospheric Vacuum Breakers
WATTSAtmospheric Vacuum Breakers

WATTS Anti-Siphon Vacuum Breaker: FNPT x FNPT, 3/8 in Pipe Size, Polished Chrome

The WATTS Anti-Siphon Vacuum Breaker (MPN LF288AC-3/8") is a 3/8 in, polished chrome atmospheric vacuum breaker with FNPT x FNPT connections, designed for water media. It is certified to NSF/ANSI 372.

SKU 3G-OTH-597086

Brand
WATTS
Item
Anti-Siphon Vacuum Breaker: FNPT x FNPT, 3/8 in Pipe Size, Polished Chrome
Category
Atmospheric Vacuum Breakers
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Technical Specifications

WATTS
Manufacturer Part Number
LF288AC-3/8"
Type
Polished Chrome, For Water Media
Pipe Size
3/8 in
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WATTS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Anti-Siphon Vacuum Breaker (MPN LF288AC-3/8") is a 3/8 in, polished chrome atmospheric vacuum breaker with FNPT x FNPT connections, designed for water media. It is certified to NSF/ANSI 372.

Frequently Asked Questions

What is a WATTS anti-siphon vacuum breaker used for?

A WATTS anti-siphon vacuum breaker prevents backflow of contaminated water into potable water lines. This 3/8 in polished chrome model (LF288AC-3/8") is used on hose bibs or service outlets to protect against siphonage in residential or commercial water systems.

What are the specifications of the WATTS LF288AC-3/8" vacuum breaker?

The WATTS LF288AC-3/8" is a 3/8 in atmospheric vacuum breaker with FNPT x FNPT connections in polished chrome. It is designed for water media and certified to NSF/ANSI 372 for lead-free compliance. The manufacturer part number is LF288AC-3/8".

Where to buy a WATTS anti-siphon vacuum breaker worldwide?

3G Electric supplies the WATTS LF288AC-3/8" anti-siphon vacuum breaker to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this polished chrome, 3/8 in backflow prevention device.

How to install a WATTS atmospheric vacuum breaker?

Install the WATTS LF288AC-3/8" at least 6 inches above the highest downstream outlet. Ensure flow direction matches the arrow on the body. Use PTFE tape on the FNPT threads and test for leaks after installation. This device must not be subjected to continuous pressure.

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 atmospheric vacuum breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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WATTS Spill Resistant Vacuum Breaker: MNPT x MNPT, 3/4 in Pipe Size, For Water Media, Brass, Male (MPN LF289-3/4"). Key specifications — attr1058597: WATTS; attr1096789: No.
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WATTS Vacuum Breaker: FNPT x FNPT, 2 in Pipe Size, For Water Media, Brass, 33°F – 180°F, Female, NPT (MPN 2 188A). Key specifications — attr1058597: WATTS; attr1096789: No.
WATTS Vacuum Breaker: FNPT x FNPT, 1 in Pipe Size, For Water Media, Brass, 33°F – 180°F, Female, NPT (MPN 1 188A). Key specifications — attr1058597: WATTS; attr1096789: No.
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WATTS Vacuum Breaker: FNPT x FNPT, 1 in Pipe Size, For Water Media, Brass, 33°F – 180°F, Female, NPT (MPN 1 188A). Key specifications — attr1058597: WATTS; attr1096789: No.
WATTS Vacuum Breaker: FNPT x FNPT, 2 in Pipe Size, For Water Media, Brass, 33°F – 180°F, Female, NPT (MPN 2 LF288AM2). Key specifications — attr1058597: WATTS; attr1096789: No; attr1096794: NSF/ANSI 372.
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WATTS Vacuum Breaker: FNPT x FNPT, 2 in Pipe Size, For Water Media, Brass, 33°F – 180°F, Female, NPT (MPN 2 LF288AM2). Key specifications — attr1058597: WATTS; attr1096789: No; attr1096794: NSF/ANSI 372.
WATTS Vacuum Breaker: FNPT x FNPT, 1 1/2 in Pipe Size, For Water Media, Brass, 33°F – 180°F, Female (MPN 1-1/2 LF288AM2). Key specifications — attr1058597: WATTS; attr1096789: No; attr1096794: NSF/ANSI 372.
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WATTS Vacuum Breaker: FNPT x FNPT, 1 1/2 in Pipe Size, For Water Media, Brass, 33°F – 180°F, Female (MPN 1-1/2 LF288AM2). Key specifications — attr1058597: WATTS; attr1096789: No; attr1096794: NSF/ANSI 372.
WATTS Vacuum Breaker: FNPT x FNPT, 1 1/4 in Pipe Size, For Water Media, Brass, 33°F – 180°F, Female (MPN 1-1/4 188A). Key specifications — attr1058597: WATTS; attr1096789: No.
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WATTS Vacuum Breaker: FNPT x FNPT, 1 1/4 in Pipe Size, For Water Media, Brass, 33°F – 180°F, Female (MPN 1-1/4 188A). Key specifications — attr1058597: WATTS; attr1096789: No.
WATTS Vacuum Breaker: FNPT x FNPT, 1 1/2 in Pipe Size, For Water Media, Brass, 33°F – 180°F, Female (MPN 1-1/2 188A). Key specifications — attr1058597: WATTS; attr1096789: No.
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