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  • Mainline Backflow Products
    Mainline Backflow Products
    780.413.7204
    12530-128 St, T5L 1C9  Edmonton

    The Mainline Adapt-a-Valve series of Backwater Valves is ideal for the 'slab on grade' market or anywhere where a backwater valve needs to be buried deeper than 24 inches. No more costly 'vaults' or 'manholes' needed! The easy access to the gate for servicing and the added ability to pressure test …