Zone Valve, 3/8" Flare, 24 Vac, Normally Closed, 15 Second Nominal Opening Time, 20 Psi Maximum Differential Pressure ( Closeoff ), 18" Leadwires, 3.5 Cv, Spring Return to Close, Normally Open SPST Auxiliary Switch, Manual Opener, Includes 2 Straight 3/4" Sweat Adapters

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