Expansion Tanks
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Zurn Wilkins
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Zurn Wilkins WILKINS WATER THERMAL EXPANSION TANK, 9.25 GALLON
Item # 786183
Designed for installation on potable water lines between the backflow preventer or pressure reducing valve and the water heater to protect against water thermal expansion. When system pressure increases, water enters the tanks polypropylene lined water chamber which expands a diaphragm into a pre-charged air chamber, keeping system pressure below the relief valve setting.
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