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Backflow Preventers

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Smith® 7012S03 Sewer Backwater Valve With Bolted Cover, 3 in, Spigot, Cast Iron Body
Smith® 7012S04 Sewer Backwater Valve w/ Bolted Cover, 4", Spigot, Cast Iron Body
Smith® 7012S06 Sewer Backwater Valve With Bolted Cover, 6 in, Spigot, Cast Iron Body
Smith® 7012Y04 Sewer Backwater Valve w/ Bolted Cover, 4" Nominal, No-Hub End Style, Cast Iron Body
Smith® 7070C04 Terminal Backwater Valve w/ Backwater Valve Mechanism, 4", Hub Outlet, Cast Iron Body
Smith® 7080Y03-2 Drain Outlet Backwater Valve, 3 in Nominal, No Hub End Style, Cast Iron Body