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WATTS Anti-Siphon Vacuum Breaker: FNPT x FNPT, 1 in Pipe Size, For Water Media - Atmospheric Vacuum Breakers
WATTSAtmospheric Vacuum Breakers

WATTS Anti-Siphon Vacuum Breaker: FNPT x FNPT, 1 in Pipe Size, For Water Media

The WATTS Anti-Siphon Vacuum Breaker (MPN LF288A-1") is a 1 in FNPT x FNPT atmospheric vacuum breaker for water media, constructed in brass and rated for 33°F – 180°F. It is certified to NSF/ANSI 372. 3G Electric…

SKU 3G-OTH-597047

Brand
WATTS
Item
Anti-Siphon Vacuum Breaker: FNPT x FNPT, 1 in Pipe Size, For Water Media
Category
Atmospheric Vacuum Breakers
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Technical Specifications

WATTS
Manufacturer Part Number
LF288A-1"
Type
For Water Media, Brass, 33°F – 180°F
Pipe Size
1 in
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WATTS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Anti-Siphon Vacuum Breaker (MPN LF288A-1") is a 1 in FNPT x FNPT atmospheric vacuum breaker for water media, constructed in brass and rated for 33°F – 180°F. It is certified to NSF/ANSI 372. 3G Electric interprets this demand and delivers genuine WATTS equipment across 14 industrial departments — with specialist depth in combustion, pumps and controls — ensuring you get the right solution, not just a part.

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 supply lines. It is installed on water systems to protect against siphonage, commonly used in irrigation, commercial plumbing, and industrial water applications where cross-connection control is required.

What are the specifications of the WATTS LF288A-1"?

The WATTS LF288A-1" is a 1 in FNPT x FNPT atmospheric vacuum breaker for water media, constructed in brass. It operates from 33°F to 180°F and is certified to NSF/ANSI 372 for lead-free compliance. The manufacturer part number is LF288A-1".

Where to buy a WATTS Anti-Siphon Vacuum Breaker worldwide?

3G Electric supplies genuine WATTS Anti-Siphon Vacuum Breakers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us to source the LF288A-1" or other WATTS backflow prevention products for your application.

How to install a WATTS atmospheric vacuum breaker?

Install the WATTS vacuum breaker vertically and at least 6 inches above the highest downstream outlet to ensure proper venting. Use thread sealant on FNPT connections and avoid downstream shutoff valves. Test annually per local codes to confirm the check valve and air inlet operate correctly.

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 Anti-Siphon Vacuum Breaker: FNPT x FNPT, 3/8 in Pipe Size, For Water Media, Brass, Female, NPT (MPN LF288A-3/8"). Key specifications — attr1058597: WATTS; attr1096789: No; attr1096794: NSF/ANSI 372.
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WATTS Anti-Siphon Vacuum Breaker: FNPT x FNPT, 3/8 in Pipe Size, For Water Media, Brass, Female, NPT (MPN LF288A-3/8"). Key specifications — attr1058597: WATTS; attr1096789: No; attr1096794: NSF/ANSI 372.
WATTS Vacuum Breaker: FNPT x FNPT, 2 1/2 in Pipe Size, For Water Media, Brass, 33°F – 180°F, Female (MPN 2-1/2 LF288AM2). Key specifications — attr1058597: WATTS; attr1096789: No; attr1096794: NSF/ANSI 372.
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WATTS Vacuum Breaker: FNPT x FNPT, 2 1/2 in Pipe Size, For Water Media, Brass, 33°F – 180°F, Female (MPN 2-1/2 LF288AM2). Key specifications — attr1058597: WATTS; attr1096789: No; attr1096794: NSF/ANSI 372.
WATTS Anti-Siphon Vacuum Breaker: FNPT x FNPT, 1/4 in Pipe Size, Polished Chrome, For Water Media (MPN LF288AC-1/4"). Key specifications — attr1058597: WATTS; attr1096789: No; attr1096794: NSF/ANSI 372.
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WATTS Anti-Siphon Vacuum Breaker: FNPT x FNPT, 1/4 in Pipe Size, Polished Chrome, For Water Media (MPN LF288AC-1/4"). Key specifications — attr1058597: WATTS; attr1096789: No; attr1096794: NSF/ANSI 372.
WATTS Atmospheric Vacuum Breaker: FNPT x FNPT, 3/8 in Pipe Size, Polished Chrome, For Water Media (MPN 3/8 LFN388-C). Key specifications — attr1058597: WATTS; attr1096789: No.
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WATTS Atmospheric Vacuum Breaker: FNPT x FNPT, 3/8 in Pipe Size, Polished Chrome, For Water Media (MPN 3/8 LFN388-C). Key specifications — attr1058597: WATTS; attr1096789: No.
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 LF288AM2). Key specifications — attr1058597: WATTS; attr1096789: No; attr1096794: NSF/ANSI 372.
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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 LF288AM2). Key specifications — attr1058597: WATTS; attr1096789: No; attr1096794: NSF/ANSI 372.
WATTS Anti-Siphon Vacuum Breaker: FNPT x FNPT, 3/4 in Pipe Size, For Water Media, Brass, Female, NPT (MPN LF288A-3/4"). Key specifications — attr1058597: WATTS; attr1096789: No; attr1096794: NSF/ANSI 372.
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WATTS Anti-Siphon Vacuum Breaker: FNPT x FNPT, 3/4 in Pipe Size, For Water Media, Brass, Female, NPT (MPN LF288A-3/4"). Key specifications — attr1058597: WATTS; attr1096789: No; attr1096794: NSF/ANSI 372.
WATTS Anti-Siphon Vacuum Breaker: FNPT x FNPT, 1/2 in Pipe Size, For Water Media, Brass, Female, NPT (MPN LF288A-1/2"). Key specifications — attr1058597: WATTS; attr1096789: No; attr1096794: NSF/ANSI 372.
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WATTS Anti-Siphon Vacuum Breaker: FNPT x FNPT, 1/2 in Pipe Size, For Water Media, Brass, Female, NPT (MPN LF288A-1/2"). Key specifications — attr1058597: WATTS; attr1096789: No; attr1096794: NSF/ANSI 372.
WATTS Atmospheric Vacuum Breaker: MNPT x MNPT, 1/2 in Pipe Size, For Water Media, Brass, Male, NPT (MPN LF289-1/2"). Key specifications — attr1058597: WATTS; attr1096789: No.
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WATTS Atmospheric Vacuum Breaker: MNPT x MNPT, 1/2 in Pipe Size, For Water Media, Brass, Male, NPT (MPN LF289-1/2"). Key specifications — attr1058597: WATTS; attr1096789: No.