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    Thermal Expansion Tanks

    Thermal Expansion Tanks

    The Flexcon FLEX 2 PRO PH potable water expansion tanks are designed to maintain safe pressure in domestic water systems that utilize a back flow preventer or check valve.

    These tanks feature a 100% butyl diaphragm and plastic liner to separate the system water from the tanks air pre-charge. The system has a stainless steel sleeve to prevent corrosion and the tanks are finished with appliance-quality paint to help prevent external corrosion.


    • Tank is 16-gauge cold rolled steel
    • Appliance quality urethane paint finish for indoor or outdoor installation
    • Water chamber is 100% butyl rubber, lined with polypropylene
    • Stainless steel connection
    • Steel clench ring regulates movement and prevents diaphragm from rubbing against tank wall
    • Air valve is brass valve with o-ring seal
    • 5 year limited warranty

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