AWWA C-504 and C-516 Butterfly valves, AWWA C-519 Double-Offset Butterfly Valves, AWWA C-507 Rubber-seated ball valve, AWWA C-508 Check Valves (Surgebuster® check valve, dual disc check valve, rubber flapper check valve, lever and weight check valves, tilting disc check valves), AWWA C-517 Plug Valves, water & wastewater Air Release Valves
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