Show or Hide

Backflow Prevention


Lead Free* Hot or Cold Water Anti-Siphon Vacuum Breakers

Lead Free* Models Available


1/4 and 3/8 in. (8 and 10mm)


Series LFN388 represents a line of vacuum breakers designed to prevent backsiphonage of contaminated water into the potable water supply. The LFN388 features Lead Free* construction to comply with Lead Free* installation requirements.

They feature a lightweight, durable "disc float" suitable for temperatures up to 180°F (82°C) which closes the atmospheric vent to prevent spilling under all rates of flow. They are ideally recommended for low flow installations such as laboratory equipment which use small amounts of water. They also contain a durable silicone disc which has high heat and water hammer shock resistance and assures tight seating with the lightest of seating contact. Maximum Pressure:125psi (8.6 bar).

Loading Models/UPC Codes...
Loading Approvals...
Loading warranty information...
Loading data...

Disclaimer: Watts product dimensions in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements, please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.

Please Note: Watts literature requires Adobe Acrobat Reader to view.

*The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight.

Got Feedback?