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Water Quality & Conditioning


OneFlow® Anti-Scale System for 75 gpm (284 lpm)

Lead Free* Models Available


2 in. (50mm)


Provides protection from scale formation on internal plumbing surfaces. The OneFlow® system may be installed at the point-of-entry to a building to treat both hot** and cold water, or it can be located directly before a water heater, boiler, or other hot water-using device that requires protection from the ill effects of hard water.

NOTE:For hot water applications where water temperature is 110°F – 150°F (43° – 66°C), please consult ES-OneFlow-HotWater

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

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