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GWS FlowThru™ Series Expansion Vessels

Booster systems, thermal expansion, heating expansion, irrigation systems, hydraulic hammer arresting.


    •    Patented FlowThru Technology for freshest water
    •    Available in Composite and Steel
    •    Patented CAD2 diaphragm technology
    •    No stagnation
    •    Patented Watervane, total recirculation of the water
    •    Leak free air valve cap sealed with closed cell foam
    •    Comprehensive testing
    •    No maintenance


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