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Backflow Prevention



Hot or Cold Water Anti-Siphon Vacuum Breakers


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


Series N388 Hot or Cold Water Anti-Siphon Vacuum Breakers prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. It consists of brass body construction (N388) or chrome finish (N388C) or satin chrome finish (N388SC) and chemical resistant silicone seat disc. Series N388 has a full size orifice to assure pipe size capacity and maximum flow. It is ideal for low flow, hot or cold water non-continuous health hazard installations such as on laboratory equipment, bidets, bottle washers, chemical dispensers, dishwashers, photographic tanks, shampoo sinks, and soap dispensers. Maximum Pressure:125psi (8.6 bar).

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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.

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