Deringer 20 Double Check Backflow Prevention Valve (DC)

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Deringer 20GX Double Check Backflow Preventer with OS&Y Gate Valves, double check ou double-check

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Deringer 20 Double Check Backflow Prevention Valve (DC)

Deringer 20X Double Check Backflow Prevention Valve (DC)

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Deringer 20GX Double Check Backflow Preventer with OS&Y Gate Valves

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DERINGER 20 (DC) DBL CHK BFP

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