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Features Converts MNPT to 150 class flange
It is an ASME Section VIII fixed bladder type precharged expansion tank
it eliminates up to twelve 1/2 inch fittings in a compact package while the one-piece construction eliminates up to eleven threaded joints
UPC - 098268589566
Watts 757-OSY-GXG 2 1/2 - Part of the 757 Series ZC100F-2NH Features Converts MNPT to 150This 2 1 2 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of water of non potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. It is ideal for protection at cross connections identified as non health hazards and from other contaminants found at the service